Merge pull request #298 from riscv/jimtcl-mirror

Don't use unreliably hosted submodules (git2cl, jimtcl, libjaylink)

48 files changed, 12849 insertions, 8 deletions

diff --git a/.gitmodules b/.gitmodules
index 5865ff9..b99c87a 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,9 +1,3 @@
-[submodule "tools/git2cl"]
-	path = tools/git2cl
-	url = http://repo.or.cz/r/git2cl.git
 [submodule "jimtcl"]
 	path = jimtcl
-	url = http://repo.or.cz/r/jimtcl.git
-[submodule "src/jtag/drivers/libjaylink"]
-	path = src/jtag/drivers/libjaylink
-	url = http://repo.or.cz/r/libjaylink.git
+	url = https://github.com/msteveb/jimtcl
diff --git a/.travis.yml b/.travis.yml
index 88a6b8d..3691a1c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -55,6 +55,8 @@ script:
     # 50 changes any case. Most merges won't consist of more than 40 changes,
     # so this should work fine most of the time, and be a lot better than not
     # checking at all.
-    - git diff -U20 HEAD~40 | ./tools/scripts/checkpatch.pl --no-signoff -
+    - git diff -U20 HEAD~40 |
+        filterdiff -x "src/jtag/drivers/libjaylink/*" -x "tools/git2cl/*" |
+        ./tools/scripts/checkpatch.pl --no-signoff -
     - ./bootstrap && ./configure --enable-remote-bitbang --enable-jtag_vpi $CONFIGURE_ARGS && make
     - file src/$EXECUTABLE
diff --git a/src/jtag/drivers/libjaylink b/src/jtag/drivers/libjaylink
deleted file mode 160000
-Subproject 8645845c1abebd004e991ba9a7f808f4fd0c608
diff --git a/src/jtag/drivers/libjaylink/.gitignore b/src/jtag/drivers/libjaylink/.gitignore
new file mode 100644
index 0000000..0197dc0
--- /dev/null
+++ b/src/jtag/drivers/libjaylink/.gitignore
@@ -0,0 +1,24 @@
+aclocal.m4
+autom4te.cache
+build-aux
+config.h*
+config.log
+config.status
+configure
+configure.gnu
+.deps
+doxy/
+Doxyfile
+INSTALL
+*.la
+libjaylink.pc
+.libs
+libtool
+*.lo
+m4/libtool.m4
+m4/lt*.m4
+Makefile
+Makefile.in
+*.o
+stamp-h1
+version.h
diff --git a/src/jtag/drivers/libjaylink/AUTHORS b/src/jtag/drivers/libjaylink/AUTHORS
new file mode 100644
index 0000000..507d6e0
--- /dev/null
+++ b/src/jtag/drivers/libjaylink/AUTHORS
@@ -0,0 +1,2 @@
+Please check the source code files and/or Git commit history for a list of all
+authors and contributors.
diff --git a/src/jtag/drivers/libjaylink/COPYING b/src/jtag/drivers/libjaylink/COPYING
new file mode 100644
index 0000000..d159169
--- /dev/null
+++ b/src/jtag/drivers/libjaylink/COPYING
@@ -0,0 +1,339 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
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+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
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+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Ty Coon>, 1 April 1989
+  Ty Coon, President of Vice
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+This General Public License does not permit incorporating your program into
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+library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.
diff --git a/src/jtag/drivers/libjaylink/ChangeLog b/src/jtag/drivers/libjaylink/ChangeLog
new file mode 100644
index 0000000..fade3c9
--- /dev/null
+++ b/src/jtag/drivers/libjaylink/ChangeLog
@@ -0,0 +1 @@
+Please check the Git commit history for a detailed list of changes.
diff --git a/src/jtag/drivers/libjaylink/Doxyfile.in b/src/jtag/drivers/libjaylink/Doxyfile.in
new file mode 100644
index 0000000..86c5460
--- /dev/null
+++ b/src/jtag/drivers/libjaylink/Doxyfile.in
@@ -0,0 +1,2301 @@
+# Doxyfile 1.8.6
+
+# This file describes the settings to be used by the documentation system
+# doxygen (www.doxygen.org) for a project.
+#
+# All text after a double hash (##) is considered a comment and is placed in
+# front of the TAG it is preceding.
+#
+# All text after a single hash (#) is considered a comment and will be ignored.
+# The format is:
+# TAG = value [value, ...]
+# For lists, items can also be appended using:
+# TAG += value [value, ...]
+# Values that contain spaces should be placed between quotes (\" \").
+
+#---------------------------------------------------------------------------
+# Project related configuration options
+#---------------------------------------------------------------------------
+
+# This tag specifies the encoding used for all characters in the config file
+# that follow. The default is UTF-8 which is also the encoding used for all text
+# before the first occurrence of this tag. Doxygen uses libiconv (or the iconv
+# built into libc) for the transcoding. See http://www.gnu.org/software/libiconv
+# for the list of possible encodings.
+# The default value is: UTF-8.
+
+DOXYFILE_ENCODING      = UTF-8
+
+# The PROJECT_NAME tag is a single word (or a sequence of words surrounded by
+# double-quotes, unless you are using Doxywizard) that should identify the
+# project for which the documentation is generated. This name is used in the
+# title of most generated pages and in a few other places.
+# The default value is: My Project.
+
+PROJECT_NAME           = "libjaylink"
+
+# The PROJECT_NUMBER tag can be used to enter a project or revision number. This
+# could be handy for archiving the generated documentation or if some version
+# control system is used.
+
+PROJECT_NUMBER         = "@JAYLINK_VERSION_PACKAGE@"
+
+# Using the PROJECT_BRIEF tag one can provide an optional one line description
+# for a project that appears at the top of each page and should give viewer a
+# quick idea about the purpose of the project. Keep the description short.
+
+PROJECT_BRIEF          = "Library to access J-Link devices"
+
+# With the PROJECT_LOGO tag one can specify an logo or icon that is included in
+# the documentation. The maximum height of the logo should not exceed 55 pixels
+# and the maximum width should not exceed 200 pixels. Doxygen will copy the logo
+# to the output directory.
+
+PROJECT_LOGO           =
+
+# The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute) path
+# into which the generated documentation will be written. If a relative path is
+# entered, it will be relative to the location where doxygen was started. If
+# left blank the current directory will be used.
+
+OUTPUT_DIRECTORY       = doxy
+
+# If the CREATE_SUBDIRS tag is set to YES, then doxygen will create 4096 sub-
+# directories (in 2 levels) under the output directory of each output format and
+# will distribute the generated files over these directories. Enabling this
+# option can be useful when feeding doxygen a huge amount of source files, where
+# putting all generated files in the same directory would otherwise causes
+# performance problems for the file system.
+# The default value is: NO.
+
+CREATE_SUBDIRS         = NO
+
+# The OUTPUT_LANGUAGE tag is used to specify the language in which all
+# documentation generated by doxygen is written. Doxygen will use this
+# information to generate all constant output in the proper language.
+# Possible values are: Afrikaans, Arabic, Armenian, Brazilian, Catalan, Chinese,
+# Chinese-Traditional, Croatian, Czech, Danish, Dutch, English (United States),
+# Esperanto, Farsi (Persian), Finnish, French, German, Greek, Hungarian,
+# Indonesian, Italian, Japanese, Japanese-en (Japanese with English messages),
+# Korean, Korean-en (Korean with English messages), Latvian, Lithuanian,
+# Macedonian, Norwegian, Persian (Farsi), Polish, Portuguese, Romanian, Russian,
+# Serbian, Serbian-Cyrillic, Slovak, Slovene, Spanish, Swedish, Turkish,
+# Ukrainian and Vietnamese.
+# The default value is: English.
+
+OUTPUT_LANGUAGE        = English
+
+# If the BRIEF_MEMBER_DESC tag is set to YES doxygen will include brief member
+# descriptions after the members that are listed in the file and class
+# documentation (similar to Javadoc). Set to NO to disable this.
+# The default value is: YES.
+
+BRIEF_MEMBER_DESC      = YES
+
+# If the REPEAT_BRIEF tag is set to YES doxygen will prepend the brief
+# description of a member or function before the detailed description
+#
+# Note: If both HIDE_UNDOC_MEMBERS and BRIEF_MEMBER_DESC are set to NO, the
+# brief descriptions will be completely suppressed.
+# The default value is: YES.
+
+REPEAT_BRIEF           = YES
+
+# This tag implements a quasi-intelligent brief description abbreviator that is
+# used to form the text in various listings. Each string in this list, if found
+# as the leading text of the brief description, will be stripped from the text
+# and the result, after processing the whole list, is used as the annotated
+# text. Otherwise, the brief description is used as-is. If left blank, the
+# following values are used ($name is automatically replaced with the name of
+# the entity):The $name class, The $name widget, The $name file, is, provides,
+# specifies, contains, represents, a, an and the.
+
+ABBREVIATE_BRIEF       =
+
+# If the ALWAYS_DETAILED_SEC and REPEAT_BRIEF tags are both set to YES then
+# doxygen will generate a detailed section even if there is only a brief
+# description.
+# The default value is: NO.
+
+ALWAYS_DETAILED_SEC    = NO
+
+# If the INLINE_INHERITED_MEMB tag is set to YES, doxygen will show all
+# inherited members of a class in the documentation of that class as if those
+# members were ordinary class members. Constructors, destructors and assignment
+# operators of the base classes will not be shown.
+# The default value is: NO.
+
+INLINE_INHERITED_MEMB  = NO
+
+# If the FULL_PATH_NAMES tag is set to YES doxygen will prepend the full path
+# before files name in the file list and in the header files. If set to NO the
+# shortest path that makes the file name unique will be used
+# The default value is: YES.
+
+FULL_PATH_NAMES        = YES
+
+# The STRIP_FROM_PATH tag can be used to strip a user-defined part of the path.
+# Stripping is only done if one of the specified strings matches the left-hand
+# part of the path. The tag can be used to show relative paths in the file list.
+# If left blank the directory from which doxygen is run is used as the path to
+# strip.
+#
+# Note that you can specify absolute paths here, but also relative paths, which
+# will be relative from the directory where doxygen is started.
+# This tag requires that the tag FULL_PATH_NAMES is set to YES.
+
+STRIP_FROM_PATH        =
+
+# The STRIP_FROM_INC_PATH tag can be used to strip a user-defined part of the
+# path mentioned in the documentation of a class, which tells the reader which
+# header file to include in order to use a class. If left blank only the name of
+# the header file containing the class definition is used. Otherwise one should
+# specify the list of include paths that are normally passed to the compiler
+# using the -I flag.
+
+STRIP_FROM_INC_PATH    =
+
+# If the SHORT_NAMES tag is set to YES, doxygen will generate much shorter (but
+# less readable) file names. This can be useful is your file systems doesn't
+# support long names like on DOS, Mac, or CD-ROM.
+# The default value is: NO.
+
+SHORT_NAMES            = NO
+
+# If the JAVADOC_AUTOBRIEF tag is set to YES then doxygen will interpret the
+# first line (until the first dot) of a Javadoc-style comment as the brief
+# description. If set to NO, the Javadoc-style will behave just like regular Qt-
+# style comments (thus requiring an explicit @brief command for a brief
+# description.)
+# The default value is: NO.
+
+JAVADOC_AUTOBRIEF      = YES
+
+# If the QT_AUTOBRIEF tag is set to YES then doxygen will interpret the first
+# line (until the first dot) of a Qt-style comment as the brief description. If
+# set to NO, the Qt-style will behave just like regular Qt-style comments (thus
+# requiring an explicit \brief command for a brief description.)
+# The default value is: NO.
+
+QT_AUTOBRIEF           = NO
+
+# The MULTILINE_CPP_IS_BRIEF tag can be set to YES to make doxygen treat a
+# multi-line C++ special comment block (i.e. a block of //! or /// comments) as
+# a brief description. This used to be the default behavior. The new default is
+# to treat a multi-line C++ comment block as a detailed description. Set this
+# tag to YES if you prefer the old behavior instead.
+#
+# Note that setting this tag to YES also means that rational rose comments are
+# not recognized any more.
+# The default value is: NO.
+
+MULTILINE_CPP_IS_BRIEF = NO
+
+# If the INHERIT_DOCS tag is set to YES then an undocumented member inherits the
+# documentation from any documented member that it re-implements.
+# The default value is: YES.
+
+INHERIT_DOCS           = YES
+
+# If the SEPARATE_MEMBER_PAGES tag is set to YES, then doxygen will produce a
+# new page for each member. If set to NO, the documentation of a member will be
+# part of the file/class/namespace that contains it.
+# The default value is: NO.
+
+SEPARATE_MEMBER_PAGES  = NO
+
+# The TAB_SIZE tag can be used to set the number of spaces in a tab. Doxygen
+# uses this value to replace tabs by spaces in code fragments.
+# Minimum value: 1, maximum value: 16, default value: 4.
+
+TAB_SIZE               = 8
+
+# This tag can be used to specify a number of aliases that act as commands in
+# the documentation. An alias has the form:
+# name=value
+# For example adding
+# "sideeffect=@par Side Effects:\n"
+# will allow you to put the command \sideeffect (or @sideeffect) in the
+# documentation, which will result in a user-defined paragraph with heading
+# "Side Effects:". You can put \n's in the value part of an alias to insert
+# newlines.
+
+ALIASES                =
+
+# This tag can be used to specify a number of word-keyword mappings (TCL only).
+# A mapping has the form "name=value". For example adding "class=itcl::class"
+# will allow you to use the command class in the itcl::class meaning.
+
+TCL_SUBST              =
+
+# Set the OPTIMIZE_OUTPUT_FOR_C tag to YES if your project consists of C sources
+# only. Doxygen will then generate output that is more tailored for C. For
+# instance, some of the names that are used will be different. The list of all
+# members will be omitted, etc.
+# The default value is: NO.
+
+OPTIMIZE_OUTPUT_FOR_C  = YES
+
+# Set the OPTIMIZE_OUTPUT_JAVA tag to YES if your project consists of Java or
+# Python sources only. Doxygen will then generate output that is more tailored
+# for that language. For instance, namespaces will be presented as packages,
+# qualified scopes will look different, etc.
+# The default value is: NO.
+
+OPTIMIZE_OUTPUT_JAVA   = NO
+
+# Set the OPTIMIZE_FOR_FORTRAN tag to YES if your project consists of Fortran
+# sources. Doxygen will then generate output that is tailored for Fortran.
+# The default value is: NO.
+
+OPTIMIZE_FOR_FORTRAN   = NO
+
+# Set the OPTIMIZE_OUTPUT_VHDL tag to YES if your project consists of VHDL
+# sources. Doxygen will then generate output that is tailored for VHDL.
+# The default value is: NO.
+
+OPTIMIZE_OUTPUT_VHDL   = NO
+
+# Doxygen selects the parser to use depending on the extension of the files it
+# parses. With this tag you can assign which parser to use for a given
+# extension. Doxygen has a built-in mapping, but you can override or extend it
+# using this tag. The format is ext=language, where ext is a file extension, and
+# language is one of the parsers supported by doxygen: IDL, Java, Javascript,
+# C#, C, C++, D, PHP, Objective-C, Python, Fortran, VHDL. For instance to make
+# doxygen treat .inc files as Fortran files (default is PHP), and .f files as C
+# (default is Fortran), use: inc=Fortran f=C.
+#
+# Note For files without extension you can use no_extension as a placeholder.
+#
+# Note that for custom extensions you also need to set FILE_PATTERNS otherwise
+# the files are not read by doxygen.
+
+EXTENSION_MAPPING      =
+
+# If the MARKDOWN_SUPPORT tag is enabled then doxygen pre-processes all comments
+# according to the Markdown format, which allows for more readable
+# documentation. See http://daringfireball.net/projects/markdown/ for details.
+# The output of markdown processing is further processed by doxygen, so you can
+# mix doxygen, HTML, and XML commands with Markdown formatting. Disable only in
+# case of backward compatibilities issues.
+# The default value is: YES.
+
+MARKDOWN_SUPPORT       = YES
+
+# When enabled doxygen tries to link words that correspond to documented
+# classes, or namespaces to their corresponding documentation. Such a link can
+# be prevented in individual cases by by putting a % sign in front of the word
+# or globally by setting AUTOLINK_SUPPORT to NO.
+# The default value is: YES.
+
+AUTOLINK_SUPPORT       = YES
+
+# If you use STL classes (i.e. std::string, std::vector, etc.) but do not want
+# to include (a tag file for) the STL sources as input, then you should set this
+# tag to YES in order to let doxygen match functions declarations and
+# definitions whose arguments contain STL classes (e.g. func(std::string);
+# versus func(std::string) {}). This also make the inheritance and collaboration
+# diagrams that involve STL classes more complete and accurate.
+# The default value is: NO.
+
+BUILTIN_STL_SUPPORT    = NO
+
+# If you use Microsoft's C++/CLI language, you should set this option to YES to
+# enable parsing support.
+# The default value is: NO.
+
+CPP_CLI_SUPPORT        = NO
+
+# Set the SIP_SUPPORT tag to YES if your project consists of sip (see:
+# http://www.riverbankcomputing.co.uk/software/sip/intro) sources only. Doxygen
+# will parse them like normal C++ but will assume all classes use public instead
+# of private inheritance when no explicit protection keyword is present.
+# The default value is: NO.
+
+SIP_SUPPORT            = NO
+
+# For Microsoft's IDL there are propget and propput attributes to indicate
+# getter and setter methods for a property. Setting this option to YES will make
+# doxygen to replace the get and set methods by a property in the documentation.
+# This will only work if the methods are indeed getting or setting a simple
+# type. If this is not the case, or you want to show the methods anyway, you
+# should set this option to NO.
+# The default value is: YES.
+
+IDL_PROPERTY_SUPPORT   = YES
+
+# If member grouping is used in the documentation and the DISTRIBUTE_GROUP_DOC
+# tag is set to YES, then doxygen will reuse the documentation of the first
+# member in the group (if any) for the other members of the group. By default
+# all members of a group must be documented explicitly.
+# The default value is: NO.
+
+DISTRIBUTE_GROUP_DOC   = NO
+
+# Set the SUBGROUPING tag to YES to allow class member groups of the same type
+# (for instance a group of public functions) to be put as a subgroup of that
+# type (e.g. under the Public Functions section). Set it to NO to prevent
+# subgrouping. Alternatively, this can be done per class using the
+# \nosubgrouping command.
+# The default value is: YES.
+
+SUBGROUPING            = YES
+
+# When the INLINE_GROUPED_CLASSES tag is set to YES, classes, structs and unions
+# are shown inside the group in which they are included (e.g. using \ingroup)
+# instead of on a separate page (for HTML and Man pages) or section (for LaTeX
+# and RTF).
+#
+# Note that this feature does not work in combination with
+# SEPARATE_MEMBER_PAGES.
+# The default value is: NO.
+
+INLINE_GROUPED_CLASSES = NO
+
+# When the INLINE_SIMPLE_STRUCTS tag is set to YES, structs, classes, and unions
+# with only public data fields or simple typedef fields will be shown inline in
+# the documentation of the scope in which they are defined (i.e. file,
+# namespace, or group documentation), provided this scope is documented. If set
+# to NO, structs, classes, and unions are shown on a separate page (for HTML and
+# Man pages) or section (for LaTeX and RTF).
+# The default value is: NO.
+
+INLINE_SIMPLE_STRUCTS  = NO
+
+# When TYPEDEF_HIDES_STRUCT tag is enabled, a typedef of a struct, union, or
+# enum is documented as struct, union, or enum with the name of the typedef. So
+# typedef struct TypeS {} TypeT, will appear in the documentation as a struct
+# with name TypeT. When disabled the typedef will appear as a member of a file,
+# namespace, or class. And the struct will be named TypeS. This can typically be
+# useful for C code in case the coding convention dictates that all compound
+# types are typedef'ed and only the typedef is referenced, never the tag name.
+# The default value is: NO.
+
+TYPEDEF_HIDES_STRUCT   = NO
+
+# The size of the symbol lookup cache can be set using LOOKUP_CACHE_SIZE. This
+# cache is used to resolve symbols given their name and scope. Since this can be
+# an expensive process and often the same symbol appears multiple times in the
+# code, doxygen keeps a cache of pre-resolved symbols. If the cache is too small
+# doxygen will become slower. If the cache is too large, memory is wasted. The
+# cache size is given by this formula: 2^(16+LOOKUP_CACHE_SIZE). The valid range
+# is 0..9, the default is 0, corresponding to a cache size of 2^16=65536
+# symbols. At the end of a run doxygen will report the cache usage and suggest
+# the optimal cache size from a speed point of view.
+# Minimum value: 0, maximum value: 9, default value: 0.
+
+LOOKUP_CACHE_SIZE      = 0
+
+#---------------------------------------------------------------------------
+# Build related configuration options
+#---------------------------------------------------------------------------
+
+# If the EXTRACT_ALL tag is set to YES doxygen will assume all entities in
+# documentation are documented, even if no documentation was available. Private
+# class members and static file members will be hidden unless the
+# EXTRACT_PRIVATE respectively EXTRACT_STATIC tags are set to YES.
+# Note: This will also disable the warnings about undocumented members that are
+# normally produced when WARNINGS is set to YES.
+# The default value is: NO.
+
+EXTRACT_ALL            = NO
+
+# If the EXTRACT_PRIVATE tag is set to YES all private members of a class will
+# be included in the documentation.
+# The default value is: NO.
+
+EXTRACT_PRIVATE        = NO
+
+# If the EXTRACT_PACKAGE tag is set to YES all members with package or internal
+# scope will be included in the documentation.
+# The default value is: NO.
+
+EXTRACT_PACKAGE        = NO
+
+# If the EXTRACT_STATIC tag is set to YES all static members of a file will be
+# included in the documentation.
+# The default value is: NO.
+
+EXTRACT_STATIC         = NO
+
+# If the EXTRACT_LOCAL_CLASSES tag is set to YES classes (and structs) defined
+# locally in source files will be included in the documentation. If set to NO
+# only classes defined in header files are included. Does not have any effect
+# for Java sources.
+# The default value is: YES.
+
+EXTRACT_LOCAL_CLASSES  = YES
+
+# This flag is only useful for Objective-C code. When set to YES local methods,
+# which are defined in the implementation section but not in the interface are
+# included in the documentation. If set to NO only methods in the interface are
+# included.
+# The default value is: NO.
+
+EXTRACT_LOCAL_METHODS  = NO
+
+# If this flag is set to YES, the members of anonymous namespaces will be
+# extracted and appear in the documentation as a namespace called
+# 'anonymous_namespace{file}', where file will be replaced with the base name of
+# the file that contains the anonymous namespace. By default anonymous namespace
+# are hidden.
+# The default value is: NO.
+
+EXTRACT_ANON_NSPACES   = NO
+
+# If the HIDE_UNDOC_MEMBERS tag is set to YES, doxygen will hide all
+# undocumented members inside documented classes or files. If set to NO these
+# members will be included in the various overviews, but no documentation
+# section is generated. This option has no effect if EXTRACT_ALL is enabled.
+# The default value is: NO.
+
+HIDE_UNDOC_MEMBERS     = NO
+
+# If the HIDE_UNDOC_CLASSES tag is set to YES, doxygen will hide all
+# undocumented classes that are normally visible in the class hierarchy. If set
+# to NO these classes will be included in the various overviews. This option has
+# no effect if EXTRACT_ALL is enabled.
+# The default value is: NO.
+
+HIDE_UNDOC_CLASSES     = NO
+
+# If the HIDE_FRIEND_COMPOUNDS tag is set to YES, doxygen will hide all friend
+# (class|struct|union) declarations. If set to NO these declarations will be
+# included in the documentation.
+# The default value is: NO.
+
+HIDE_FRIEND_COMPOUNDS  = NO
+
+# If the HIDE_IN_BODY_DOCS tag is set to YES, doxygen will hide any
+# documentation blocks found inside the body of a function. If set to NO these
+# blocks will be appended to the function's detailed documentation block.
+# The default value is: NO.
+
+HIDE_IN_BODY_DOCS      = NO
+
+# The INTERNAL_DOCS tag determines if documentation that is typed after a
+# \internal command is included. If the tag is set to NO then the documentation
+# will be excluded. Set it to YES to include the internal documentation.
+# The default value is: NO.
+
+INTERNAL_DOCS          = NO
+
+# If the CASE_SENSE_NAMES tag is set to NO then doxygen will only generate file
+# names in lower-case letters. If set to YES upper-case letters are also
+# allowed. This is useful if you have classes or files whose names only differ
+# in case and if your file system supports case sensitive file names. Windows
+# and Mac users are advised to set this option to NO.
+# The default value is: system dependent.
+
+CASE_SENSE_NAMES       = YES
+
+# If the HIDE_SCOPE_NAMES tag is set to NO then doxygen will show members with
+# their full class and namespace scopes in the documentation. If set to YES the
+# scope will be hidden.
+# The default value is: NO.
+
+HIDE_SCOPE_NAMES       = NO
+
+# If the SHOW_INCLUDE_FILES tag is set to YES then doxygen will put a list of
+# the files that are included by a file in the documentation of that file.
+# The default value is: YES.
+
+SHOW_INCLUDE_FILES     = YES
+
+# If the SHOW_GROUPED_MEMB_INC tag is set to YES then Doxygen will add for each
+# grouped member an include statement to the documentation, telling the reader
+# which file to include in order to use the member.
+# The default value is: NO.
+
+SHOW_GROUPED_MEMB_INC  = NO
+
+# If the FORCE_LOCAL_INCLUDES tag is set to YES then doxygen will list include
+# files with double quotes in the documentation rather than with sharp brackets.
+# The default value is: NO.
+
+FORCE_LOCAL_INCLUDES   = NO
+
+# If the INLINE_INFO tag is set to YES then a tag [inline] is inserted in the
+# documentation for inline members.
+# The default value is: YES.
+
+INLINE_INFO            = YES
+
+# If the SORT_MEMBER_DOCS tag is set to YES then doxygen will sort the
+# (detailed) documentation of file and class members alphabetically by member
+# name. If set to NO the members will appear in declaration order.
+# The default value is: YES.
+
+SORT_MEMBER_DOCS       = YES
+
+# If the SORT_BRIEF_DOCS tag is set to YES then doxygen will sort the brief
+# descriptions of file, namespace and class members alphabetically by member
+# name. If set to NO the members will appear in declaration order. Note that
+# this will also influence the order of the classes in the class list.
+# The default value is: NO.
+
+SORT_BRIEF_DOCS        = NO
+
+# If the SORT_MEMBERS_CTORS_1ST tag is set to YES then doxygen will sort the
+# (brief and detailed) documentation of class members so that constructors and
+# destructors are listed first. If set to NO the constructors will appear in the
+# respective orders defined by SORT_BRIEF_DOCS and SORT_MEMBER_DOCS.
+# Note: If SORT_BRIEF_DOCS is set to NO this option is ignored for sorting brief
+# member documentation.
+# Note: If SORT_MEMBER_DOCS is set to NO this option is ignored for sorting
+# detailed member documentation.
+# The default value is: NO.
+
+SORT_MEMBERS_CTORS_1ST = NO
+
+# If the SORT_GROUP_NAMES tag is set to YES then doxygen will sort the hierarchy
+# of group names into alphabetical order. If set to NO the group names will
+# appear in their defined order.
+# The default value is: NO.
+
+SORT_GROUP_NAMES       = NO
+
+# If the SORT_BY_SCOPE_NAME tag is set to YES, the class list will be sorted by
+# fully-qualified names, including namespaces. If set to NO, the class list will
+# be sorted only by class name, not including the namespace part.
+# Note: This option is not very useful if HIDE_SCOPE_NAMES is set to YES.
+# Note: This option applies only to the class list, not to the alphabetical
+# list.
+# The default value is: NO.
+
+SORT_BY_SCOPE_NAME     = NO
+
+# If the STRICT_PROTO_MATCHING option is enabled and doxygen fails to do proper
+# type resolution of all parameters of a function it will reject a match between
+# the prototype and the implementation of a member function even if there is
+# only one candidate or it is obvious which candidate to choose by doing a
+# simple string match. By disabling STRICT_PROTO_MATCHING doxygen will still
+# accept a match between prototype and implementation in such cases.
+# The default value is: NO.
+
+STRICT_PROTO_MATCHING  = NO
+
+# The GENERATE_TODOLIST tag can be used to enable ( YES) or disable ( NO) the
+# todo list. This list is created by putting \todo commands in the
+# documentation.
+# The default value is: YES.
+
+GENERATE_TODOLIST      = YES
+
+# The GENERATE_TESTLIST tag can be used to enable ( YES) or disable ( NO) the
+# test list. This list is created by putting \test commands in the
+# documentation.
+# The default value is: YES.
+
+GENERATE_TESTLIST      = YES
+
+# The GENERATE_BUGLIST tag can be used to enable ( YES) or disable ( NO) the bug
+# list. This list is created by putting \bug commands in the documentation.
+# The default value is: YES.
+
+GENERATE_BUGLIST       = YES
+
+# The GENERATE_DEPRECATEDLIST tag can be used to enable ( YES) or disable ( NO)
+# the deprecated list. This list is created by putting \deprecated commands in
+# the documentation.
+# The default value is: YES.
+
+GENERATE_DEPRECATEDLIST= YES
+
+# The ENABLED_SECTIONS tag can be used to enable conditional documentation
+# sections, marked by \if <section_label> ... \endif and \cond <section_label>
+# ... \endcond blocks.
+
+ENABLED_SECTIONS       =
+
+# The MAX_INITIALIZER_LINES tag determines the maximum number of lines that the
+# initial value of a variable or macro / define can have for it to appear in the
+# documentation. If the initializer consists of more lines than specified here
+# it will be hidden. Use a value of 0 to hide initializers completely. The
+# appearance of the value of individual variables and macros / defines can be
+# controlled using \showinitializer or \hideinitializer command in the
+# documentation regardless of this setting.
+# Minimum value: 0, maximum value: 10000, default value: 30.
+
+MAX_INITIALIZER_LINES  = 30
+
+# Set the SHOW_USED_FILES tag to NO to disable the list of files generated at
+# the bottom of the documentation of classes and structs. If set to YES the list
+# will mention the files that were used to generate the documentation.
+# The default value is: YES.
+
+SHOW_USED_FILES        = YES
+
+# Set the SHOW_FILES tag to NO to disable the generation of the Files page. This
+# will remove the Files entry from the Quick Index and from the Folder Tree View
+# (if specified).
+# The default value is: YES.
+
+SHOW_FILES             = YES
+
+# Set the SHOW_NAMESPACES tag to NO to disable the generation of the Namespaces
+# page. This will remove the Namespaces entry from the Quick Index and from the
+# Folder Tree View (if specified).
+# The default value is: YES.
+
+SHOW_NAMESPACES        = YES
+
+# The FILE_VERSION_FILTER tag can be used to specify a program or script that
+# doxygen should invoke to get the current version for each file (typically from
+# the version control system). Doxygen will invoke the program by executing (via
+# popen()) the command command input-file, where command is the value of the
+# FILE_VERSION_FILTER tag, and input-file is the name of an input file provided
+# by doxygen. Whatever the program writes to standard output is used as the file
+# version. For an example see the documentation.
+
+FILE_VERSION_FILTER    =
+
+# The LAYOUT_FILE tag can be used to specify a layout file which will be parsed
+# by doxygen. The layout file controls the global structure of the generated
+# output files in an output format independent way. To create the layout file
+# that represents doxygen's defaults, run doxygen with the -l option. You can
+# optionally specify a file name after the option, if omitted DoxygenLayout.xml
+# will be used as the name of the layout file.
+#
+# Note that if you run doxygen from a directory containing a file called
+# DoxygenLayout.xml, doxygen will parse it automatically even if the LAYOUT_FILE
+# tag is left empty.
+
+LAYOUT_FILE            =
+
+# The CITE_BIB_FILES tag can be used to specify one or more bib files containing
+# the reference definitions. This must be a list of .bib files. The .bib
+# extension is automatically appended if omitted. This requires the bibtex tool
+# to be installed. See also http://en.wikipedia.org/wiki/BibTeX for more info.
+# For LaTeX the style of the bibliography can be controlled using
+# LATEX_BIB_STYLE. To use this feature you need bibtex and perl available in the
+# search path. Do not use file names with spaces, bibtex cannot handle them. See
+# also \cite for info how to create references.
+
+CITE_BIB_FILES         =
+
+#---------------------------------------------------------------------------
+# Configuration options related to warning and progress messages
+#---------------------------------------------------------------------------
+
+# The QUIET tag can be used to turn on/off the messages that are generated to
+# standard output by doxygen. If QUIET is set to YES this implies that the
+# messages are off.
+# The default value is: NO.
+
+QUIET                  = NO
+
+# The WARNINGS tag can be used to turn on/off the warning messages that are
+# generated to standard error ( stderr) by doxygen. If WARNINGS is set to YES
+# this implies that the warnings are on.
+#
+# Tip: Turn warnings on while writing the documentation.
+# The default value is: YES.
+
+WARNINGS               = YES
+
+# If the WARN_IF_UNDOCUMENTED tag is set to YES, then doxygen will generate
+# warnings for undocumented members. If EXTRACT_ALL is set to YES then this flag
+# will automatically be disabled.
+# The default value is: YES.
+
+WARN_IF_UNDOCUMENTED   = YES
+
+# If the WARN_IF_DOC_ERROR tag is set to YES, doxygen will generate warnings for
+# potential errors in the documentation, such as not documenting some parameters
+# in a documented function, or documenting parameters that don't exist or using
+# markup commands wrongly.
+# The default value is: YES.
+
+WARN_IF_DOC_ERROR      = YES
+
+# This WARN_NO_PARAMDOC option can be enabled to get warnings for functions that
+# are documented, but have no documentation for their parameters or return
+# value. If set to NO doxygen will only warn about wrong or incomplete parameter
+# documentation, but not about the absence of documentation.
+# The default value is: NO.
+
+WARN_NO_PARAMDOC       = NO
+
+# The WARN_FORMAT tag determines the format of the warning messages that doxygen
+# can produce. The string should contain the $file, $line, and $text tags, which
+# will be replaced by the file and line number from which the warning originated
+# and the warning text. Optionally the format may contain $version, which will
+# be replaced by the version of the file (if it could be obtained via
+# FILE_VERSION_FILTER)
+# The default value is: $file:$line: $text.
+
+WARN_FORMAT            = "$file:$line: $text"
+
+# The WARN_LOGFILE tag can be used to specify a file to which warning and error
+# messages should be written. If left blank the output is written to standard
+# error (stderr).
+
+WARN_LOGFILE           =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the input files
+#---------------------------------------------------------------------------
+
+# The INPUT tag is used to specify the files and/or directories that contain
+# documented source files. You may enter file names like myfile.cpp or
+# directories like /usr/src/myproject. Separate the files or directories with
+# spaces.
+# Note: If this tag is empty the current directory is searched.
+
+INPUT                  = @top_srcdir@/libjaylink \
+                         @top_builddir@/libjaylink/version.h
+
+# This tag can be used to specify the character encoding of the source files
+# that doxygen parses. Internally doxygen uses the UTF-8 encoding. Doxygen uses
+# libiconv (or the iconv built into libc) for the transcoding. See the libiconv
+# documentation (see: http://www.gnu.org/software/libiconv) for the list of
+# possible encodings.
+# The default value is: UTF-8.
+
+INPUT_ENCODING         = UTF-8
+
+# If the value of the INPUT tag contains directories, you can use the
+# FILE_PATTERNS tag to specify one or more wildcard patterns (like *.cpp and
+# *.h) to filter out the source-files in the directories. If left blank the
+# following patterns are tested:*.c, *.cc, *.cxx, *.cpp, *.c++, *.java, *.ii,
+# *.ixx, *.ipp, *.i++, *.inl, *.idl, *.ddl, *.odl, *.h, *.hh, *.hxx, *.hpp,
+# *.h++, *.cs, *.d, *.php, *.php4, *.php5, *.phtml, *.inc, *.m, *.markdown,
+# *.md, *.mm, *.dox, *.py, *.f90, *.f, *.for, *.tcl, *.vhd, *.vhdl, *.ucf,
+# *.qsf, *.as and *.js.
+
+FILE_PATTERNS          =
+
+# The RECURSIVE tag can be used to specify whether or not subdirectories should
+# be searched for input files as well.
+# The default value is: NO.
+
+RECURSIVE              = NO
+
+# The EXCLUDE tag can be used to specify files and/or directories that should be
+# excluded from the INPUT source files. This way you can easily exclude a
+# subdirectory from a directory tree whose root is specified with the INPUT tag.
+#
+# Note that relative paths are relative to the directory from which doxygen is
+# run.
+
+EXCLUDE                = @top_srcdir@/libjaylink/buffer.c \
+                         @top_srcdir@/libjaylink/discovery_tcp.c \
+                         @top_srcdir@/libjaylink/discovery_usb.c \
+                         @top_srcdir@/libjaylink/libjaylink-internal.h \
+                         @top_srcdir@/libjaylink/list.c \
+                         @top_srcdir@/libjaylink/socket.c \
+                         @top_srcdir@/libjaylink/transport.c \
+                         @top_srcdir@/libjaylink/transport_tcp.c \
+                         @top_srcdir@/libjaylink/transport_usb.c
+
+# The EXCLUDE_SYMLINKS tag can be used to select whether or not files or
+# directories that are symbolic links (a Unix file system feature) are excluded
+# from the input.
+# The default value is: NO.
+
+EXCLUDE_SYMLINKS       = NO
+
+# If the value of the INPUT tag contains directories, you can use the
+# EXCLUDE_PATTERNS tag to specify one or more wildcard patterns to exclude
+# certain files from those directories.
+#
+# Note that the wildcards are matched against the file with absolute path, so to
+# exclude all test directories for example use the pattern */test/*
+
+EXCLUDE_PATTERNS       =
+
+# The EXCLUDE_SYMBOLS tag can be used to specify one or more symbol names
+# (namespaces, classes, functions, etc.) that should be excluded from the
+# output. The symbol name can be a fully qualified name, a word, or if the
+# wildcard * is used, a substring. Examples: ANamespace, AClass,
+# AClass::ANamespace, ANamespace::*Test
+#
+# Note that the wildcards are matched against the file with absolute path, so to
+# exclude all test directories use the pattern */test/*
+
+EXCLUDE_SYMBOLS        =
+
+# The EXAMPLE_PATH tag can be used to specify one or more files or directories
+# that contain example code fragments that are included (see the \include
+# command).
+
+EXAMPLE_PATH           =
+
+# If the value of the EXAMPLE_PATH tag contains directories, you can use the
+# EXAMPLE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp and
+# *.h) to filter out the source-files in the directories. If left blank all
+# files are included.
+
+EXAMPLE_PATTERNS       =
+
+# If the EXAMPLE_RECURSIVE tag is set to YES then subdirectories will be
+# searched for input files to be used with the \include or \dontinclude commands
+# irrespective of the value of the RECURSIVE tag.
+# The default value is: NO.
+
+EXAMPLE_RECURSIVE      = NO
+
+# The IMAGE_PATH tag can be used to specify one or more files or directories
+# that contain images that are to be included in the documentation (see the
+# \image command).
+
+IMAGE_PATH             =
+
+# The INPUT_FILTER tag can be used to specify a program that doxygen should
+# invoke to filter for each input file. Doxygen will invoke the filter program
+# by executing (via popen()) the command:
+#
+# <filter> <input-file>
+#
+# where <filter> is the value of the INPUT_FILTER tag, and <input-file> is the
+# name of an input file. Doxygen will then use the output that the filter
+# program writes to standard output. If FILTER_PATTERNS is specified, this tag
+# will be ignored.
+#
+# Note that the filter must not add or remove lines; it is applied before the
+# code is scanned, but not when the output code is generated. If lines are added
+# or removed, the anchors will not be placed correctly.
+
+INPUT_FILTER           =
+
+# The FILTER_PATTERNS tag can be used to specify filters on a per file pattern
+# basis. Doxygen will compare the file name with each pattern and apply the
+# filter if there is a match. The filters are a list of the form: pattern=filter
+# (like *.cpp=my_cpp_filter). See INPUT_FILTER for further information on how
+# filters are used. If the FILTER_PATTERNS tag is empty or if none of the
+# patterns match the file name, INPUT_FILTER is applied.
+
+FILTER_PATTERNS        =
+
+# If the FILTER_SOURCE_FILES tag is set to YES, the input filter (if set using
+# INPUT_FILTER ) will also be used to filter the input files that are used for
+# producing the source files to browse (i.e. when SOURCE_BROWSER is set to YES).
+# The default value is: NO.
+
+FILTER_SOURCE_FILES    = NO
+
+# The FILTER_SOURCE_PATTERNS tag can be used to specify source filters per file
+# pattern. A pattern will override the setting for FILTER_PATTERN (if any) and
+# it is also possible to disable source filtering for a specific pattern using
+# *.ext= (so without naming a filter).
+# This tag requires that the tag FILTER_SOURCE_FILES is set to YES.
+
+FILTER_SOURCE_PATTERNS =
+
+# If the USE_MDFILE_AS_MAINPAGE tag refers to the name of a markdown file that
+# is part of the input, its contents will be placed on the main page
+# (index.html). This can be useful if you have a project on for instance GitHub
+# and want to reuse the introduction page also for the doxygen output.
+
+USE_MDFILE_AS_MAINPAGE =
+
+#---------------------------------------------------------------------------
+# Configuration options related to source browsing
+#---------------------------------------------------------------------------
+
+# If the SOURCE_BROWSER tag is set to YES then a list of source files will be
+# generated. Documented entities will be cross-referenced with these sources.
+#
+# Note: To get rid of all source code in the generated output, make sure that
+# also VERBATIM_HEADERS is set to NO.
+# The default value is: NO.
+
+SOURCE_BROWSER         = NO
+
+# Setting the INLINE_SOURCES tag to YES will include the body of functions,
+# classes and enums directly into the documentation.
+# The default value is: NO.
+
+INLINE_SOURCES         = NO
+
+# Setting the STRIP_CODE_COMMENTS tag to YES will instruct doxygen to hide any
+# special comment blocks from generated source code fragments. Normal C, C++ and
+# Fortran comments will always remain visible.
+# The default value is: YES.
+
+STRIP_CODE_COMMENTS    = YES
+
+# If the REFERENCED_BY_RELATION tag is set to YES then for each documented
+# function all documented functions referencing it will be listed.
+# The default value is: NO.
+
+REFERENCED_BY_RELATION = NO
+
+# If the REFERENCES_RELATION tag is set to YES then for each documented function
+# all documented entities called/used by that function will be listed.
+# The default value is: NO.
+
+REFERENCES_RELATION    = NO
+
+# If the REFERENCES_LINK_SOURCE tag is set to YES and SOURCE_BROWSER tag is set
+# to YES, then the hyperlinks from functions in REFERENCES_RELATION and
+# REFERENCED_BY_RELATION lists will link to the source code. Otherwise they will
+# link to the documentation.
+# The default value is: YES.
+
+REFERENCES_LINK_SOURCE = YES
+
+# If SOURCE_TOOLTIPS is enabled (the default) then hovering a hyperlink in the
+# source code will show a tooltip with additional information such as prototype,
+# brief description and links to the definition and documentation. Since this
+# will make the HTML file larger and loading of large files a bit slower, you
+# can opt to disable this feature.
+# The default value is: YES.
+# This tag requires that the tag SOURCE_BROWSER is set to YES.
+
+SOURCE_TOOLTIPS        = YES
+
+# If the USE_HTAGS tag is set to YES then the references to source code will
+# point to the HTML generated by the htags(1) tool instead of doxygen built-in
+# source browser. The htags tool is part of GNU's global source tagging system
+# (see http://www.gnu.org/software/global/global.html). You will need version
+# 4.8.6 or higher.
+#
+# To use it do the following:
+# - Install the latest version of global
+# - Enable SOURCE_BROWSER and USE_HTAGS in the config file
+# - Make sure the INPUT points to the root of the source tree
+# - Run doxygen as normal
+#
+# Doxygen will invoke htags (and that will in turn invoke gtags), so these
+# tools must be available from the command line (i.e. in the search path).
+#
+# The result: instead of the source browser generated by doxygen, the links to
+# source code will now point to the output of htags.
+# The default value is: NO.
+# This tag requires that the tag SOURCE_BROWSER is set to YES.
+
+USE_HTAGS              = NO
+
+# If the VERBATIM_HEADERS tag is set the YES then doxygen will generate a
+# verbatim copy of the header file for each class for which an include is
+# specified. Set to NO to disable this.
+# See also: Section \class.
+# The default value is: YES.
+
+VERBATIM_HEADERS       = YES
+
+#---------------------------------------------------------------------------
+# Configuration options related to the alphabetical class index
+#---------------------------------------------------------------------------
+
+# If the ALPHABETICAL_INDEX tag is set to YES, an alphabetical index of all
+# compounds will be generated. Enable this if the project contains a lot of
+# classes, structs, unions or interfaces.
+# The default value is: YES.
+
+ALPHABETICAL_INDEX     = YES
+
+# The COLS_IN_ALPHA_INDEX tag can be used to specify the number of columns in
+# which the alphabetical index list will be split.
+# Minimum value: 1, maximum value: 20, default value: 5.
+# This tag requires that the tag ALPHABETICAL_INDEX is set to YES.
+
+COLS_IN_ALPHA_INDEX    = 5
+
+# In case all classes in a project start with a common prefix, all classes will
+# be put under the same header in the alphabetical index. The IGNORE_PREFIX tag
+# can be used to specify a prefix (or a list of prefixes) that should be ignored
+# while generating the index headers.
+# This tag requires that the tag ALPHABETICAL_INDEX is set to YES.
+
+IGNORE_PREFIX          =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the HTML output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_HTML tag is set to YES doxygen will generate HTML output
+# The default value is: YES.
+
+GENERATE_HTML          = YES
+
+# The HTML_OUTPUT tag is used to specify where the HTML docs will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it.
+# The default directory is: html.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_OUTPUT            = html
+
+# The HTML_FILE_EXTENSION tag can be used to specify the file extension for each
+# generated HTML page (for example: .htm, .php, .asp).
+# The default value is: .html.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_FILE_EXTENSION    = .html
+
+# The HTML_HEADER tag can be used to specify a user-defined HTML header file for
+# each generated HTML page. If the tag is left blank doxygen will generate a
+# standard header.
+#
+# To get valid HTML the header file that includes any scripts and style sheets
+# that doxygen needs, which is dependent on the configuration options used (e.g.
+# the setting GENERATE_TREEVIEW). It is highly recommended to start with a
+# default header using
+# doxygen -w html new_header.html new_footer.html new_stylesheet.css
+# YourConfigFile
+# and then modify the file new_header.html. See also section "Doxygen usage"
+# for information on how to generate the default header that doxygen normally
+# uses.
+# Note: The header is subject to change so you typically have to regenerate the
+# default header when upgrading to a newer version of doxygen. For a description
+# of the possible markers and block names see the documentation.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_HEADER            =
+
+# The HTML_FOOTER tag can be used to specify a user-defined HTML footer for each
+# generated HTML page. If the tag is left blank doxygen will generate a standard
+# footer. See HTML_HEADER for more information on how to generate a default
+# footer and what special commands can be used inside the footer. See also
+# section "Doxygen usage" for information on how to generate the default footer
+# that doxygen normally uses.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_FOOTER            =
+
+# The HTML_STYLESHEET tag can be used to specify a user-defined cascading style
+# sheet that is used by each HTML page. It can be used to fine-tune the look of
+# the HTML output. If left blank doxygen will generate a default style sheet.
+# See also section "Doxygen usage" for information on how to generate the style
+# sheet that doxygen normally uses.
+# Note: It is recommended to use HTML_EXTRA_STYLESHEET instead of this tag, as
+# it is more robust and this tag (HTML_STYLESHEET) will in the future become
+# obsolete.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_STYLESHEET        =
+
+# The HTML_EXTRA_STYLESHEET tag can be used to specify an additional user-
+# defined cascading style sheet that is included after the standard style sheets
+# created by doxygen. Using this option one can overrule certain style aspects.
+# This is preferred over using HTML_STYLESHEET since it does not replace the
+# standard style sheet and is therefor more robust against future updates.
+# Doxygen will copy the style sheet file to the output directory. For an example
+# see the documentation.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_EXTRA_STYLESHEET  =
+
+# The HTML_EXTRA_FILES tag can be used to specify one or more extra images or
+# other source files which should be copied to the HTML output directory. Note
+# that these files will be copied to the base HTML output directory. Use the
+# $relpath^ marker in the HTML_HEADER and/or HTML_FOOTER files to load these
+# files. In the HTML_STYLESHEET file, use the file name only. Also note that the
+# files will be copied as-is; there are no commands or markers available.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_EXTRA_FILES       =
+
+# The HTML_COLORSTYLE_HUE tag controls the color of the HTML output. Doxygen
+# will adjust the colors in the stylesheet and background images according to
+# this color. Hue is specified as an angle on a colorwheel, see
+# http://en.wikipedia.org/wiki/Hue for more information. For instance the value
+# 0 represents red, 60 is yellow, 120 is green, 180 is cyan, 240 is blue, 300
+# purple, and 360 is red again.
+# Minimum value: 0, maximum value: 359, default value: 220.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_COLORSTYLE_HUE    = 220
+
+# The HTML_COLORSTYLE_SAT tag controls the purity (or saturation) of the colors
+# in the HTML output. For a value of 0 the output will use grayscales only. A
+# value of 255 will produce the most vivid colors.
+# Minimum value: 0, maximum value: 255, default value: 100.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_COLORSTYLE_SAT    = 100
+
+# The HTML_COLORSTYLE_GAMMA tag controls the gamma correction applied to the
+# luminance component of the colors in the HTML output. Values below 100
+# gradually make the output lighter, whereas values above 100 make the output
+# darker. The value divided by 100 is the actual gamma applied, so 80 represents
+# a gamma of 0.8, The value 220 represents a gamma of 2.2, and 100 does not
+# change the gamma.
+# Minimum value: 40, maximum value: 240, default value: 80.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_COLORSTYLE_GAMMA  = 80
+
+# If the HTML_TIMESTAMP tag is set to YES then the footer of each generated HTML
+# page will contain the date and time when the page was generated. Setting this
+# to NO can help when comparing the output of multiple runs.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_TIMESTAMP         = YES
+
+# If the HTML_DYNAMIC_SECTIONS tag is set to YES then the generated HTML
+# documentation will contain sections that can be hidden and shown after the
+# page has loaded.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_DYNAMIC_SECTIONS  = NO
+
+# With HTML_INDEX_NUM_ENTRIES one can control the preferred number of entries
+# shown in the various tree structured indices initially; the user can expand
+# and collapse entries dynamically later on. Doxygen will expand the tree to
+# such a level that at most the specified number of entries are visible (unless
+# a fully collapsed tree already exceeds this amount). So setting the number of
+# entries 1 will produce a full collapsed tree by default. 0 is a special value
+# representing an infinite number of entries and will result in a full expanded
+# tree by default.
+# Minimum value: 0, maximum value: 9999, default value: 100.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_INDEX_NUM_ENTRIES = 100
+
+# If the GENERATE_DOCSET tag is set to YES, additional index files will be
+# generated that can be used as input for Apple's Xcode 3 integrated development
+# environment (see: http://developer.apple.com/tools/xcode/), introduced with
+# OSX 10.5 (Leopard). To create a documentation set, doxygen will generate a
+# Makefile in the HTML output directory. Running make will produce the docset in
+# that directory and running make install will install the docset in
+# ~/Library/Developer/Shared/Documentation/DocSets so that Xcode will find it at
+# startup. See http://developer.apple.com/tools/creatingdocsetswithdoxygen.html
+# for more information.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_DOCSET        = NO
+
+# This tag determines the name of the docset feed. A documentation feed provides
+# an umbrella under which multiple documentation sets from a single provider
+# (such as a company or product suite) can be grouped.
+# The default value is: Doxygen generated docs.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_FEEDNAME        = "Doxygen generated docs"
+
+# This tag specifies a string that should uniquely identify the documentation
+# set bundle. This should be a reverse domain-name style string, e.g.
+# com.mycompany.MyDocSet. Doxygen will append .docset to the name.
+# The default value is: org.doxygen.Project.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_BUNDLE_ID       = org.doxygen.Project
+
+# The DOCSET_PUBLISHER_ID tag specifies a string that should uniquely identify
+# the documentation publisher. This should be a reverse domain-name style
+# string, e.g. com.mycompany.MyDocSet.documentation.
+# The default value is: org.doxygen.Publisher.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_PUBLISHER_ID    = org.doxygen.Publisher
+
+# The DOCSET_PUBLISHER_NAME tag identifies the documentation publisher.
+# The default value is: Publisher.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_PUBLISHER_NAME  = Publisher
+
+# If the GENERATE_HTMLHELP tag is set to YES then doxygen generates three
+# additional HTML index files: index.hhp, index.hhc, and index.hhk. The
+# index.hhp is a project file that can be read by Microsoft's HTML Help Workshop
+# (see: http://www.microsoft.com/en-us/download/details.aspx?id=21138) on
+# Windows.
+#
+# The HTML Help Workshop contains a compiler that can convert all HTML output
+# generated by doxygen into a single compiled HTML file (.chm). Compiled HTML
+# files are now used as the Windows 98 help format, and will replace the old
+# Windows help format (.hlp) on all Windows platforms in the future. Compressed
+# HTML files also contain an index, a table of contents, and you can search for
+# words in the documentation. The HTML workshop also contains a viewer for
+# compressed HTML files.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_HTMLHELP      = NO
+
+# The CHM_FILE tag can be used to specify the file name of the resulting .chm
+# file. You can add a path in front of the file if the result should not be
+# written to the html output directory.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+CHM_FILE               =
+
+# The HHC_LOCATION tag can be used to specify the location (absolute path
+# including file name) of the HTML help compiler ( hhc.exe). If non-empty
+# doxygen will try to run the HTML help compiler on the generated index.hhp.
+# The file has to be specified with full path.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+HHC_LOCATION           =
+
+# The GENERATE_CHI flag controls if a separate .chi index file is generated (
+# YES) or that it should be included in the master .chm file ( NO).
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+GENERATE_CHI           = NO
+
+# The CHM_INDEX_ENCODING is used to encode HtmlHelp index ( hhk), content ( hhc)
+# and project file content.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+CHM_INDEX_ENCODING     =
+
+# The BINARY_TOC flag controls whether a binary table of contents is generated (
+# YES) or a normal table of contents ( NO) in the .chm file.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+BINARY_TOC             = NO
+
+# The TOC_EXPAND flag can be set to YES to add extra items for group members to
+# the table of contents of the HTML help documentation and to the tree view.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+TOC_EXPAND             = NO
+
+# If the GENERATE_QHP tag is set to YES and both QHP_NAMESPACE and
+# QHP_VIRTUAL_FOLDER are set, an additional index file will be generated that
+# can be used as input for Qt's qhelpgenerator to generate a Qt Compressed Help
+# (.qch) of the generated HTML documentation.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_QHP           = NO
+
+# If the QHG_LOCATION tag is specified, the QCH_FILE tag can be used to specify
+# the file name of the resulting .qch file. The path specified is relative to
+# the HTML output folder.
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QCH_FILE               =
+
+# The QHP_NAMESPACE tag specifies the namespace to use when generating Qt Help
+# Project output. For more information please see Qt Help Project / Namespace
+# (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#namespace).
+# The default value is: org.doxygen.Project.
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_NAMESPACE          = org.doxygen.Project
+
+# The QHP_VIRTUAL_FOLDER tag specifies the namespace to use when generating Qt
+# Help Project output. For more information please see Qt Help Project / Virtual
+# Folders (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#virtual-
+# folders).
+# The default value is: doc.
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_VIRTUAL_FOLDER     = doc
+
+# If the QHP_CUST_FILTER_NAME tag is set, it specifies the name of a custom
+# filter to add. For more information please see Qt Help Project / Custom
+# Filters (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#custom-
+# filters).
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_CUST_FILTER_NAME   =
+
+# The QHP_CUST_FILTER_ATTRS tag specifies the list of the attributes of the
+# custom filter to add. For more information please see Qt Help Project / Custom
+# Filters (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#custom-
+# filters).
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_CUST_FILTER_ATTRS  =
+
+# The QHP_SECT_FILTER_ATTRS tag specifies the list of the attributes this
+# project's filter section matches. Qt Help Project / Filter Attributes (see:
+# http://qt-project.org/doc/qt-4.8/qthelpproject.html#filter-attributes).
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_SECT_FILTER_ATTRS  =
+
+# The QHG_LOCATION tag can be used to specify the location of Qt's
+# qhelpgenerator. If non-empty doxygen will try to run qhelpgenerator on the
+# generated .qhp file.
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHG_LOCATION           =
+
+# If the GENERATE_ECLIPSEHELP tag is set to YES, additional index files will be
+# generated, together with the HTML files, they form an Eclipse help plugin. To
+# install this plugin and make it available under the help contents menu in
+# Eclipse, the contents of the directory containing the HTML and XML files needs
+# to be copied into the plugins directory of eclipse. The name of the directory
+# within the plugins directory should be the same as the ECLIPSE_DOC_ID value.
+# After copying Eclipse needs to be restarted before the help appears.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_ECLIPSEHELP   = NO
+
+# A unique identifier for the Eclipse help plugin. When installing the plugin
+# the directory name containing the HTML and XML files should also have this
+# name. Each documentation set should have its own identifier.
+# The default value is: org.doxygen.Project.
+# This tag requires that the tag GENERATE_ECLIPSEHELP is set to YES.
+
+ECLIPSE_DOC_ID         = org.doxygen.Project
+
+# If you want full control over the layout of the generated HTML pages it might
+# be necessary to disable the index and replace it with your own. The
+# DISABLE_INDEX tag can be used to turn on/off the condensed index (tabs) at top
+# of each HTML page. A value of NO enables the index and the value YES disables
+# it. Since the tabs in the index contain the same information as the navigation
+# tree, you can set this option to YES if you also set GENERATE_TREEVIEW to YES.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+DISABLE_INDEX          = NO
+
+# The GENERATE_TREEVIEW tag is used to specify whether a tree-like index
+# structure should be generated to display hierarchical information. If the tag
+# value is set to YES, a side panel will be generated containing a tree-like
+# index structure (just like the one that is generated for HTML Help). For this
+# to work a browser that supports JavaScript, DHTML, CSS and frames is required
+# (i.e. any modern browser). Windows users are probably better off using the
+# HTML help feature. Via custom stylesheets (see HTML_EXTRA_STYLESHEET) one can
+# further fine-tune the look of the index. As an example, the default style
+# sheet generated by doxygen has an example that shows how to put an image at
+# the root of the tree instead of the PROJECT_NAME. Since the tree basically has
+# the same information as the tab index, you could consider setting
+# DISABLE_INDEX to YES when enabling this option.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_TREEVIEW      = NO
+
+# The ENUM_VALUES_PER_LINE tag can be used to set the number of enum values that
+# doxygen will group on one line in the generated HTML documentation.
+#
+# Note that a value of 0 will completely suppress the enum values from appearing
+# in the overview section.
+# Minimum value: 0, maximum value: 20, default value: 4.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+ENUM_VALUES_PER_LINE   = 1
+
+# If the treeview is enabled (see GENERATE_TREEVIEW) then this tag can be used
+# to set the initial width (in pixels) of the frame in which the tree is shown.
+# Minimum value: 0, maximum value: 1500, default value: 250.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+TREEVIEW_WIDTH         = 250
+
+# When the EXT_LINKS_IN_WINDOW option is set to YES doxygen will open links to
+# external symbols imported via tag files in a separate window.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+EXT_LINKS_IN_WINDOW    = NO
+
+# Use this tag to change the font size of LaTeX formulas included as images in
+# the HTML documentation. When you change the font size after a successful
+# doxygen run you need to manually remove any form_*.png images from the HTML
+# output directory to force them to be regenerated.
+# Minimum value: 8, maximum value: 50, default value: 10.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+FORMULA_FONTSIZE       = 10
+
+# Use the FORMULA_TRANPARENT tag to determine whether or not the images
+# generated for formulas are transparent PNGs. Transparent PNGs are not
+# supported properly for IE 6.0, but are supported on all modern browsers.
+#
+# Note that when changing this option you need to delete any form_*.png files in
+# the HTML output directory before the changes have effect.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+FORMULA_TRANSPARENT    = YES
+
+# Enable the USE_MATHJAX option to render LaTeX formulas using MathJax (see
+# http://www.mathjax.org) which uses client side Javascript for the rendering
+# instead of using prerendered bitmaps. Use this if you do not have LaTeX
+# installed or if you want to formulas look prettier in the HTML output. When
+# enabled you may also need to install MathJax separately and configure the path
+# to it using the MATHJAX_RELPATH option.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+USE_MATHJAX            = NO
+
+# When MathJax is enabled you can set the default output format to be used for
+# the MathJax output. See the MathJax site (see:
+# http://docs.mathjax.org/en/latest/output.html) for more details.
+# Possible values are: HTML-CSS (which is slower, but has the best
+# compatibility), NativeMML (i.e. MathML) and SVG.
+# The default value is: HTML-CSS.
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_FORMAT         = HTML-CSS
+
+# When MathJax is enabled you need to specify the location relative to the HTML
+# output directory using the MATHJAX_RELPATH option. The destination directory
+# should contain the MathJax.js script. For instance, if the mathjax directory
+# is located at the same level as the HTML output directory, then
+# MATHJAX_RELPATH should be ../mathjax. The default value points to the MathJax
+# Content Delivery Network so you can quickly see the result without installing
+# MathJax. However, it is strongly recommended to install a local copy of
+# MathJax from http://www.mathjax.org before deployment.
+# The default value is: http://cdn.mathjax.org/mathjax/latest.
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_RELPATH        = http://cdn.mathjax.org/mathjax/latest
+
+# The MATHJAX_EXTENSIONS tag can be used to specify one or more MathJax
+# extension names that should be enabled during MathJax rendering. For example
+# MATHJAX_EXTENSIONS = TeX/AMSmath TeX/AMSsymbols
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_EXTENSIONS     =
+
+# The MATHJAX_CODEFILE tag can be used to specify a file with javascript pieces
+# of code that will be used on startup of the MathJax code. See the MathJax site
+# (see: http://docs.mathjax.org/en/latest/output.html) for more details. For an
+# example see the documentation.
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_CODEFILE       =
+
+# When the SEARCHENGINE tag is enabled doxygen will generate a search box for
+# the HTML output. The underlying search engine uses javascript and DHTML and
+# should work on any modern browser. Note that when using HTML help
+# (GENERATE_HTMLHELP), Qt help (GENERATE_QHP), or docsets (GENERATE_DOCSET)
+# there is already a search function so this one should typically be disabled.
+# For large projects the javascript based search engine can be slow, then
+# enabling SERVER_BASED_SEARCH may provide a better solution. It is possible to
+# search using the keyboard; to jump to the search box use <access key> + S
+# (what the <access key> is depends on the OS and browser, but it is typically
+# <CTRL>, <ALT>/<option>, or both). Inside the search box use the <cursor down
+# key> to jump into the search results window, the results can be navigated
+# using the <cursor keys>. Press <Enter> to select an item or <escape> to cancel
+# the search. The filter options can be selected when the cursor is inside the
+# search box by pressing <Shift>+<cursor down>. Also here use the <cursor keys>
+# to select a filter and <Enter> or <escape> to activate or cancel the filter
+# option.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+SEARCHENGINE           = YES
+
+# When the SERVER_BASED_SEARCH tag is enabled the search engine will be
+# implemented using a web server instead of a web client using Javascript. There
+# are two flavours of web server based searching depending on the
+# EXTERNAL_SEARCH setting. When disabled, doxygen will generate a PHP script for
+# searching and an index file used by the script. When EXTERNAL_SEARCH is
+# enabled the indexing and searching needs to be provided by external tools. See
+# the section "External Indexing and Searching" for details.
+# The default value is: NO.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+SERVER_BASED_SEARCH    = NO
+
+# When EXTERNAL_SEARCH tag is enabled doxygen will no longer generate the PHP
+# script for searching. Instead the search results are written to an XML file
+# which needs to be processed by an external indexer. Doxygen will invoke an
+# external search engine pointed to by the SEARCHENGINE_URL option to obtain the
+# search results.
+#
+# Doxygen ships with an example indexer ( doxyindexer) and search engine
+# (doxysearch.cgi) which are based on the open source search engine library
+# Xapian (see: http://xapian.org/).
+#
+# See the section "External Indexing and Searching" for details.
+# The default value is: NO.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+EXTERNAL_SEARCH        = NO
+
+# The SEARCHENGINE_URL should point to a search engine hosted by a web server
+# which will return the search results when EXTERNAL_SEARCH is enabled.
+#
+# Doxygen ships with an example indexer ( doxyindexer) and search engine
+# (doxysearch.cgi) which are based on the open source search engine library
+# Xapian (see: http://xapian.org/). See the section "External Indexing and
+# Searching" for details.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+SEARCHENGINE_URL       =
+
+# When SERVER_BASED_SEARCH and EXTERNAL_SEARCH are both enabled the unindexed
+# search data is written to a file for indexing by an external tool. With the
+# SEARCHDATA_FILE tag the name of this file can be specified.
+# The default file is: searchdata.xml.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+SEARCHDATA_FILE        = searchdata.xml
+
+# When SERVER_BASED_SEARCH and EXTERNAL_SEARCH are both enabled the
+# EXTERNAL_SEARCH_ID tag can be used as an identifier for the project. This is
+# useful in combination with EXTRA_SEARCH_MAPPINGS to search through multiple
+# projects and redirect the results back to the right project.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+EXTERNAL_SEARCH_ID     =
+
+# The EXTRA_SEARCH_MAPPINGS tag can be used to enable searching through doxygen
+# projects other than the one defined by this configuration file, but that are
+# all added to the same external search index. Each project needs to have a
+# unique id set via EXTERNAL_SEARCH_ID. The search mapping then maps the id of
+# to a relative location where the documentation can be found. The format is:
+# EXTRA_SEARCH_MAPPINGS = tagname1=loc1 tagname2=loc2 ...
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+EXTRA_SEARCH_MAPPINGS  =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the LaTeX output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_LATEX tag is set to YES doxygen will generate LaTeX output.
+# The default value is: YES.
+
+GENERATE_LATEX         = NO
+
+# The LATEX_OUTPUT tag is used to specify where the LaTeX docs will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it.
+# The default directory is: latex.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_OUTPUT           = latex
+
+# The LATEX_CMD_NAME tag can be used to specify the LaTeX command name to be
+# invoked.
+#
+# Note that when enabling USE_PDFLATEX this option is only used for generating
+# bitmaps for formulas in the HTML output, but not in the Makefile that is
+# written to the output directory.
+# The default file is: latex.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_CMD_NAME         = latex
+
+# The MAKEINDEX_CMD_NAME tag can be used to specify the command name to generate
+# index for LaTeX.
+# The default file is: makeindex.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+MAKEINDEX_CMD_NAME     = makeindex
+
+# If the COMPACT_LATEX tag is set to YES doxygen generates more compact LaTeX
+# documents. This may be useful for small projects and may help to save some
+# trees in general.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+COMPACT_LATEX          = NO
+
+# The PAPER_TYPE tag can be used to set the paper type that is used by the
+# printer.
+# Possible values are: a4 (210 x 297 mm), letter (8.5 x 11 inches), legal (8.5 x
+# 14 inches) and executive (7.25 x 10.5 inches).
+# The default value is: a4.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+PAPER_TYPE             = a4
+
+# The EXTRA_PACKAGES tag can be used to specify one or more LaTeX package names
+# that should be included in the LaTeX output. To get the times font for
+# instance you can specify
+# EXTRA_PACKAGES=times
+# If left blank no extra packages will be included.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+EXTRA_PACKAGES         =
+
+# The LATEX_HEADER tag can be used to specify a personal LaTeX header for the
+# generated LaTeX document. The header should contain everything until the first
+# chapter. If it is left blank doxygen will generate a standard header. See
+# section "Doxygen usage" for information on how to let doxygen write the
+# default header to a separate file.
+#
+# Note: Only use a user-defined header if you know what you are doing! The
+# following commands have a special meaning inside the header: $title,
+# $datetime, $date, $doxygenversion, $projectname, $projectnumber. Doxygen will
+# replace them by respectively the title of the page, the current date and time,
+# only the current date, the version number of doxygen, the project name (see
+# PROJECT_NAME), or the project number (see PROJECT_NUMBER).
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_HEADER           =
+
+# The LATEX_FOOTER tag can be used to specify a personal LaTeX footer for the
+# generated LaTeX document. The footer should contain everything after the last
+# chapter. If it is left blank doxygen will generate a standard footer.
+#
+# Note: Only use a user-defined footer if you know what you are doing!
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_FOOTER           =
+
+# The LATEX_EXTRA_FILES tag can be used to specify one or more extra images or
+# other source files which should be copied to the LATEX_OUTPUT output
+# directory. Note that the files will be copied as-is; there are no commands or
+# markers available.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_EXTRA_FILES      =
+
+# If the PDF_HYPERLINKS tag is set to YES, the LaTeX that is generated is
+# prepared for conversion to PDF (using ps2pdf or pdflatex). The PDF file will
+# contain links (just like the HTML output) instead of page references. This
+# makes the output suitable for online browsing using a PDF viewer.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+PDF_HYPERLINKS         = YES
+
+# If the LATEX_PDFLATEX tag is set to YES, doxygen will use pdflatex to generate
+# the PDF file directly from the LaTeX files. Set this option to YES to get a
+# higher quality PDF documentation.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+USE_PDFLATEX           = YES
+
+# If the LATEX_BATCHMODE tag is set to YES, doxygen will add the \batchmode
+# command to the generated LaTeX files. This will instruct LaTeX to keep running
+# if errors occur, instead of asking the user for help. This option is also used
+# when generating formulas in HTML.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_BATCHMODE        = NO
+
+# If the LATEX_HIDE_INDICES tag is set to YES then doxygen will not include the
+# index chapters (such as File Index, Compound Index, etc.) in the output.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_HIDE_INDICES     = NO
+
+# If the LATEX_SOURCE_CODE tag is set to YES then doxygen will include source
+# code with syntax highlighting in the LaTeX output.
+#
+# Note that which sources are shown also depends on other settings such as
+# SOURCE_BROWSER.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_SOURCE_CODE      = NO
+
+# The LATEX_BIB_STYLE tag can be used to specify the style to use for the
+# bibliography, e.g. plainnat, or ieeetr. See
+# http://en.wikipedia.org/wiki/BibTeX and \cite for more info.
+# The default value is: plain.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_BIB_STYLE        = plain
+
+#---------------------------------------------------------------------------
+# Configuration options related to the RTF output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_RTF tag is set to YES doxygen will generate RTF output. The
+# RTF output is optimized for Word 97 and may not look too pretty with other RTF
+# readers/editors.
+# The default value is: NO.
+
+GENERATE_RTF           = NO
+
+# The RTF_OUTPUT tag is used to specify where the RTF docs will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it.
+# The default directory is: rtf.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_OUTPUT             = rtf
+
+# If the COMPACT_RTF tag is set to YES doxygen generates more compact RTF
+# documents. This may be useful for small projects and may help to save some
+# trees in general.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+COMPACT_RTF            = NO
+
+# If the RTF_HYPERLINKS tag is set to YES, the RTF that is generated will
+# contain hyperlink fields. The RTF file will contain links (just like the HTML
+# output) instead of page references. This makes the output suitable for online
+# browsing using Word or some other Word compatible readers that support those
+# fields.
+#
+# Note: WordPad (write) and others do not support links.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_HYPERLINKS         = NO
+
+# Load stylesheet definitions from file. Syntax is similar to doxygen's config
+# file, i.e. a series of assignments. You only have to provide replacements,
+# missing definitions are set to their default value.
+#
+# See also section "Doxygen usage" for information on how to generate the
+# default style sheet that doxygen normally uses.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_STYLESHEET_FILE    =
+
+# Set optional variables used in the generation of an RTF document. Syntax is
+# similar to doxygen's config file. A template extensions file can be generated
+# using doxygen -e rtf extensionFile.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_EXTENSIONS_FILE    =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the man page output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_MAN tag is set to YES doxygen will generate man pages for
+# classes and files.
+# The default value is: NO.
+
+GENERATE_MAN           = NO
+
+# The MAN_OUTPUT tag is used to specify where the man pages will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it. A directory man3 will be created inside the directory specified by
+# MAN_OUTPUT.
+# The default directory is: man.
+# This tag requires that the tag GENERATE_MAN is set to YES.
+
+MAN_OUTPUT             = man
+
+# The MAN_EXTENSION tag determines the extension that is added to the generated
+# man pages. In case the manual section does not start with a number, the number
+# 3 is prepended. The dot (.) at the beginning of the MAN_EXTENSION tag is
+# optional.
+# The default value is: .3.
+# This tag requires that the tag GENERATE_MAN is set to YES.
+
+MAN_EXTENSION          = .3
+
+# If the MAN_LINKS tag is set to YES and doxygen generates man output, then it
+# will generate one additional man file for each entity documented in the real
+# man page(s). These additional files only source the real man page, but without
+# them the man command would be unable to find the correct page.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_MAN is set to YES.
+
+MAN_LINKS              = NO
+
+#---------------------------------------------------------------------------
+# Configuration options related to the XML output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_XML tag is set to YES doxygen will generate an XML file that
+# captures the structure of the code including all documentation.
+# The default value is: NO.
+
+GENERATE_XML           = NO
+
+# The XML_OUTPUT tag is used to specify where the XML pages will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it.
+# The default directory is: xml.
+# This tag requires that the tag GENERATE_XML is set to YES.
+
+XML_OUTPUT             = xml
+
+# If the XML_PROGRAMLISTING tag is set to YES doxygen will dump the program
+# listings (including syntax highlighting and cross-referencing information) to
+# the XML output. Note that enabling this will significantly increase the size
+# of the XML output.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_XML is set to YES.
+
+XML_PROGRAMLISTING     = YES
+
+#---------------------------------------------------------------------------
+# Configuration options related to the DOCBOOK output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_DOCBOOK tag is set to YES doxygen will generate Docbook files
+# that can be used to generate PDF.
+# The default value is: NO.
+
+GENERATE_DOCBOOK       = NO
+
+# The DOCBOOK_OUTPUT tag is used to specify where the Docbook pages will be put.
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be put in
+# front of it.
+# The default directory is: docbook.
+# This tag requires that the tag GENERATE_DOCBOOK is set to YES.
+
+DOCBOOK_OUTPUT         = docbook
+
+#---------------------------------------------------------------------------
+# Configuration options for the AutoGen Definitions output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_AUTOGEN_DEF tag is set to YES doxygen will generate an AutoGen
+# Definitions (see http://autogen.sf.net) file that captures the structure of
+# the code including all documentation. Note that this feature is still
+# experimental and incomplete at the moment.
+# The default value is: NO.
+
+GENERATE_AUTOGEN_DEF   = NO
+
+#---------------------------------------------------------------------------
+# Configuration options related to the Perl module output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_PERLMOD tag is set to YES doxygen will generate a Perl module
+# file that captures the structure of the code including all documentation.
+#
+# Note that this feature is still experimental and incomplete at the moment.
+# The default value is: NO.
+
+GENERATE_PERLMOD       = NO
+
+# If the PERLMOD_LATEX tag is set to YES doxygen will generate the necessary
+# Makefile rules, Perl scripts and LaTeX code to be able to generate PDF and DVI
+# output from the Perl module output.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_PERLMOD is set to YES.
+
+PERLMOD_LATEX          = NO
+
+# If the PERLMOD_PRETTY tag is set to YES the Perl module output will be nicely
+# formatted so it can be parsed by a human reader. This is useful if you want to
+# understand what is going on. On the other hand, if this tag is set to NO the
+# size of the Perl module output will be much smaller and Perl will parse it
+# just the same.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_PERLMOD is set to YES.
+
+PERLMOD_PRETTY         = YES
+
+# The names of the make variables in the generated doxyrules.make file are
+# prefixed with the string contained in PERLMOD_MAKEVAR_PREFIX. This is useful
+# so different doxyrules.make files included by the same Makefile don't
+# overwrite each other's variables.
+# This tag requires that the tag GENERATE_PERLMOD is set to YES.
+
+PERLMOD_MAKEVAR_PREFIX =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the preprocessor
+#---------------------------------------------------------------------------
+
+# If the ENABLE_PREPROCESSING tag is set to YES doxygen will evaluate all
+# C-preprocessor directives found in the sources and include files.
+# The default value is: YES.
+
+ENABLE_PREPROCESSING   = YES
+
+# If the MACRO_EXPANSION tag is set to YES doxygen will expand all macro names
+# in the source code. If set to NO only conditional compilation will be
+# performed. Macro expansion can be done in a controlled way by setting
+# EXPAND_ONLY_PREDEF to YES.
+# The default value is: NO.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+MACRO_EXPANSION        = YES
+
+# If the EXPAND_ONLY_PREDEF and MACRO_EXPANSION tags are both set to YES then
+# the macro expansion is limited to the macros specified with the PREDEFINED and
+# EXPAND_AS_DEFINED tags.
+# The default value is: NO.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+EXPAND_ONLY_PREDEF     = NO
+
+# If the SEARCH_INCLUDES tag is set to YES the includes files in the
+# INCLUDE_PATH will be searched if a #include is found.
+# The default value is: YES.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+SEARCH_INCLUDES        = YES
+
+# The INCLUDE_PATH tag can be used to specify one or more directories that
+# contain include files that are not input files but should be processed by the
+# preprocessor.
+# This tag requires that the tag SEARCH_INCLUDES is set to YES.
+
+INCLUDE_PATH           =
+
+# You can use the INCLUDE_FILE_PATTERNS tag to specify one or more wildcard
+# patterns (like *.h and *.hpp) to filter out the header-files in the
+# directories. If left blank, the patterns specified with FILE_PATTERNS will be
+# used.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+INCLUDE_FILE_PATTERNS  =
+
+# The PREDEFINED tag can be used to specify one or more macro names that are
+# defined before the preprocessor is started (similar to the -D option of e.g.
+# gcc). The argument of the tag is a list of macros of the form: name or
+# name=definition (no spaces). If the definition and the "=" are omitted, "=1"
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+# recursively expanded use the := operator instead of the = operator.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+PREDEFINED             = JAYLINK_API= \
+                         JAYLINK_PRIV
+
+# If the MACRO_EXPANSION and EXPAND_ONLY_PREDEF tags are set to YES then this
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+# If the SKIP_FUNCTION_MACROS tag is set to YES then doxygen's preprocessor will
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+SKIP_FUNCTION_MACROS   = YES
+
+#---------------------------------------------------------------------------
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+#---------------------------------------------------------------------------
+
+# The TAGFILES tag can be used to specify one or more tag files. For each tag
+# file the location of the external documentation should be added. The format of
+# a tag file without this location is as follows:
+# TAGFILES = file1 file2 ...
+# Adding location for the tag files is done as follows:
+# TAGFILES = file1=loc1 "file2 = loc2" ...
+# where loc1 and loc2 can be relative or absolute paths or URLs. See the
+# section "Linking to external documentation" for more information about the use
+# of tag files.
+# Note: Each tag file must have an unique name (where the name does NOT include
+# the path). If a tag file is not located in the directory in which doxygen is
+# run, you must also specify the path to the tagfile here.
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+# When a file name is specified after GENERATE_TAGFILE, doxygen will create a
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+EXTERNAL_GROUPS        = YES
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+PERL_PATH              = /usr/bin/perl
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+#---------------------------------------------------------------------------
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+# You can include diagrams made with dia in doxygen documentation. Doxygen will
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+# If set to YES, the inheritance and collaboration graphs will hide inheritance
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+# http://www.graphviz.org/), a graph visualization toolkit from AT&T and Lucent
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+# The default value is: NO.
+
+HAVE_DOT               = NO
+
+# The DOT_NUM_THREADS specifies the number of dot invocations doxygen is allowed
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+# When you want a differently looking font n the dot files that doxygen
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+# By default doxygen will tell dot to use the default font as specified with
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+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_FONTPATH           =
+
+# If the CLASS_GRAPH tag is set to YES then doxygen will generate a graph for
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+# Setting this tag to YES will force the CLASS_DIAGRAMS tag to NO.
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+# This tag requires that the tag HAVE_DOT is set to YES.
+
+CLASS_GRAPH            = YES
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+# If the COLLABORATION_GRAPH tag is set to YES then doxygen will generate a
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+# This tag requires that the tag HAVE_DOT is set to YES.
+
+COLLABORATION_GRAPH    = YES
+
+# If the GROUP_GRAPHS tag is set to YES then doxygen will generate a graph for
+# groups, showing the direct groups dependencies.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+GROUP_GRAPHS           = YES
+
+# If the UML_LOOK tag is set to YES doxygen will generate inheritance and
+# collaboration diagrams in a style similar to the OMG's Unified Modeling
+# Language.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+UML_LOOK               = NO
+
+# If the UML_LOOK tag is enabled, the fields and methods are shown inside the
+# class node. If there are many fields or methods and many nodes the graph may
+# become too big to be useful. The UML_LIMIT_NUM_FIELDS threshold limits the
+# number of items for each type to make the size more manageable. Set this to 0
+# for no limit. Note that the threshold may be exceeded by 50% before the limit
+# is enforced. So when you set the threshold to 10, up to 15 fields may appear,
+# but if the number exceeds 15, the total amount of fields shown is limited to
+# 10.
+# Minimum value: 0, maximum value: 100, default value: 10.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+UML_LIMIT_NUM_FIELDS   = 10
+
+# If the TEMPLATE_RELATIONS tag is set to YES then the inheritance and
+# collaboration graphs will show the relations between templates and their
+# instances.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+TEMPLATE_RELATIONS     = NO
+
+# If the INCLUDE_GRAPH, ENABLE_PREPROCESSING and SEARCH_INCLUDES tags are set to
+# YES then doxygen will generate a graph for each documented file showing the
+# direct and indirect include dependencies of the file with other documented
+# files.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+INCLUDE_GRAPH          = YES
+
+# If the INCLUDED_BY_GRAPH, ENABLE_PREPROCESSING and SEARCH_INCLUDES tags are
+# set to YES then doxygen will generate a graph for each documented file showing
+# the direct and indirect include dependencies of the file with other documented
+# files.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+INCLUDED_BY_GRAPH      = YES
+
+# If the CALL_GRAPH tag is set to YES then doxygen will generate a call
+# dependency graph for every global function or class method.
+#
+# Note that enabling this option will significantly increase the time of a run.
+# So in most cases it will be better to enable call graphs for selected
+# functions only using the \callgraph command.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+CALL_GRAPH             = NO
+
+# If the CALLER_GRAPH tag is set to YES then doxygen will generate a caller
+# dependency graph for every global function or class method.
+#
+# Note that enabling this option will significantly increase the time of a run.
+# So in most cases it will be better to enable caller graphs for selected
+# functions only using the \callergraph command.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+CALLER_GRAPH           = NO
+
+# If the GRAPHICAL_HIERARCHY tag is set to YES then doxygen will graphical
+# hierarchy of all classes instead of a textual one.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+GRAPHICAL_HIERARCHY    = YES
+
+# If the DIRECTORY_GRAPH tag is set to YES then doxygen will show the
+# dependencies a directory has on other directories in a graphical way. The
+# dependency relations are determined by the #include relations between the
+# files in the directories.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DIRECTORY_GRAPH        = YES
+
+# The DOT_IMAGE_FORMAT tag can be used to set the image format of the images
+# generated by dot.
+# Note: If you choose svg you need to set HTML_FILE_EXTENSION to xhtml in order
+# to make the SVG files visible in IE 9+ (other browsers do not have this
+# requirement).
+# Possible values are: png, jpg, gif and svg.
+# The default value is: png.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_IMAGE_FORMAT       = png
+
+# If DOT_IMAGE_FORMAT is set to svg, then this option can be set to YES to
+# enable generation of interactive SVG images that allow zooming and panning.
+#
+# Note that this requires a modern browser other than Internet Explorer. Tested
+# and working are Firefox, Chrome, Safari, and Opera.
+# Note: For IE 9+ you need to set HTML_FILE_EXTENSION to xhtml in order to make
+# the SVG files visible. Older versions of IE do not have SVG support.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+INTERACTIVE_SVG        = NO
+
+# The DOT_PATH tag can be used to specify the path where the dot tool can be
+# found. If left blank, it is assumed the dot tool can be found in the path.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_PATH               =
+
+# The DOTFILE_DIRS tag can be used to specify one or more directories that
+# contain dot files that are included in the documentation (see the \dotfile
+# command).
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOTFILE_DIRS           =
+
+# The MSCFILE_DIRS tag can be used to specify one or more directories that
+# contain msc files that are included in the documentation (see the \mscfile
+# command).
+
+MSCFILE_DIRS           =
+
+# The DIAFILE_DIRS tag can be used to specify one or more directories that
+# contain dia files that are included in the documentation (see the \diafile
+# command).
+
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+
+# The DOT_GRAPH_MAX_NODES tag can be used to set the maximum number of nodes
+# that will be shown in the graph. If the number of nodes in a graph becomes
+# larger than this value, doxygen will truncate the graph, which is visualized
+# by representing a node as a red box. Note that doxygen if the number of direct
+# children of the root node in a graph is already larger than
+# DOT_GRAPH_MAX_NODES then the graph will not be shown at all. Also note that
+# the size of a graph can be further restricted by MAX_DOT_GRAPH_DEPTH.
+# Minimum value: 0, maximum value: 10000, default value: 50.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_GRAPH_MAX_NODES    = 50
+
+# The MAX_DOT_GRAPH_DEPTH tag can be used to set the maximum depth of the graphs
+# generated by dot. A depth value of 3 means that only nodes reachable from the
+# root by following a path via at most 3 edges will be shown. Nodes that lay
+# further from the root node will be omitted. Note that setting this option to 1
+# or 2 may greatly reduce the computation time needed for large code bases. Also
+# note that the size of a graph can be further restricted by
+# DOT_GRAPH_MAX_NODES. Using a depth of 0 means no depth restriction.
+# Minimum value: 0, maximum value: 1000, default value: 0.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+MAX_DOT_GRAPH_DEPTH    = 0
+
+# Set the DOT_TRANSPARENT tag to YES to generate images with a transparent
+# background. This is disabled by default, because dot on Windows does not seem
+# to support this out of the box.
+#
+# Warning: Depending on the platform used, enabling this option may lead to
+# badly anti-aliased labels on the edges of a graph (i.e. they become hard to
+# read).
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_TRANSPARENT        = NO
+
+# Set the DOT_MULTI_TARGETS tag to YES allow dot to generate multiple output
+# files in one run (i.e. multiple -o and -T options on the command line). This
+# makes dot run faster, but since only newer versions of dot (>1.8.10) support
+# this, this feature is disabled by default.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_MULTI_TARGETS      = YES
+
+# If the GENERATE_LEGEND tag is set to YES doxygen will generate a legend page
+# explaining the meaning of the various boxes and arrows in the dot generated
+# graphs.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+GENERATE_LEGEND        = YES
+
+# If the DOT_CLEANUP tag is set to YES doxygen will remove the intermediate dot
+# files that are used to generate the various graphs.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_CLEANUP            = YES
diff --git a/src/jtag/drivers/libjaylink/HACKING b/src/jtag/drivers/libjaylink/HACKING
new file mode 100644
index 0000000..a654e2a
--- /dev/null
+++ b/src/jtag/drivers/libjaylink/HACKING
@@ -0,0 +1,68 @@
+Hacking
+=======
+
+This document describes how to start hacking on the libjaylink project.
+Make sure you read through the README file before continuing.
+
+
+Coding style
+------------
+
+This project uses the Linux kernel coding style where appropiate, see
+<https://www.kernel.org/doc/Documentation/CodingStyle> for details.
+
+Amendments to the Linux kernel coding style:
+
+ - Do not use goto statements.
+ - Always declare variables at the beginng of a function.
+ - Do not assign values to variables at declaration time.
+
+
+Contributions
+-------------
+
+The following ways can be used to submit a contribution to the libjaylink
+project:
+
+ - Send patches generated with `git format-patch`.
+ - Push your changes to a public Git repository and send the URL where to pull
+   them from.
+
+In any case, send directly to <jaylink-dev@marcschink.de>.
+Before submitting, please consider the following:
+
+ - Every single patch must be compilable.
+ - Your contribution must work on all operating systems supported by
+   libjaylink.
+ - Develop your contribution against the current Git master branch.
+ - Check your contribution for memory leaks and similar errors by using
+   *valgrind*.
+
+
+Bug reports
+-----------
+
+Send bug reports directly to <jaylink-dev@marcschink.de>.
+Please try to include all of the following information in your report:
+
+ - Instructions to reproduce the bug (e.g., command-line invocations)
+ - Debug log output of libjaylink
+ - Information about your environment:
+   - Version of libjaylink
+   - Debug hardware, including hardware and firmware version (e.g.,
+     J-Link Ultra V4 compiled Sep  4 2015 18:12:49)
+   - Operating system (e.g., Debian GNU/Linux 8.4)
+ - Backtraces if the application using libjaylink is crashing.
+
+If the bug report is for a regression, additionally include the information
+above about the working version where appropiate.
+
+Please develop and attach a patch that solves the reported bug, if possible.
+See the guidelines for contributions above.
+
+
+Random notes
+------------
+
+ - Always use `log_err()`, `log_warn()`, `log_info()` and `log_dbg()` to output
+   messages. Never use `printf()` or similar functions directly.
diff --git a/src/jtag/drivers/libjaylink/Makefile.am b/src/jtag/drivers/libjaylink/Makefile.am
new file mode 100644
index 0000000..6cead16
--- /dev/null
+++ b/src/jtag/drivers/libjaylink/Makefile.am
@@ -0,0 +1,28 @@
+##
+## This file is part of the libjaylink project.
+##
+## Copyright (C) 2014-2015 Marc Schink <jaylink-dev@marcschink.de>
+##
+## This program is free software: you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation, either version 2 of the License, or
+## (at your option) any later version.
+##
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+## GNU General Public License for more details.
+##
+## You should have received a copy of the GNU General Public License
+## along with this program.  If not, see <http://www.gnu.org/licenses/>.
+##
+
+ACLOCAL_AMFLAGS = -I m4
+SUBDIRS = libjaylink
+
+if !SUBPROJECT_BUILD
+pkgconfigdir = $(libdir)/pkgconfig
+pkgconfig_DATA = libjaylink.pc
+endif
+
+EXTRA_DIST = HACKING contrib/99-libjaylink.rules
diff --git a/src/jtag/drivers/libjaylink/NEWS b/src/jtag/drivers/libjaylink/NEWS
new file mode 100644
index 0000000..39244f6
--- /dev/null
+++ b/src/jtag/drivers/libjaylink/NEWS
@@ -0,0 +1,7 @@
+News
+====
+
+0.1.0 (2016-12-28)
+------------------
+
+ * Initial release.
diff --git a/src/jtag/drivers/libjaylink/README b/src/jtag/drivers/libjaylink/README
new file mode 100644
index 0000000..d01c904
--- /dev/null
+++ b/src/jtag/drivers/libjaylink/README
@@ -0,0 +1,70 @@
+libjaylink
+==========
+
+libjaylink is a shared library written in C to access SEGGER J-Link and
+compatible devices.
+
+
+Requirements
+------------
+
+libjaylink requires the following packages:
+
+ - GCC (>= 4.0) or Clang
+ - Make
+ - pkg-config >= 0.23
+ - libusb >= 1.0.9
+ - Doxygen (optional, only required for API documentation)
+
+If you're building libjaylink from Git, the following packages are additionally
+required:
+
+ - Git
+ - Libtool
+ - Autoconf >= 2.64
+ - Automake >= 1.9
+
+
+Building and installing
+-----------------------
+
+In order to get and build the latest Git version of libjaylink, run the
+following commands:
+
+    $ git clone git://git.zapb.de/libjaylink.git
+    $ cd libjaylink
+    $ ./autogen.sh
+    $ ./configure
+    $ make
+
+After `make` finishes without any errors, use the following command to install
+libjaylink:
+
+    $ make install
+
+
+Portability
+-----------
+
+libjaylink supports the following operating systems:
+
+ - GNU/Linux
+ - FreeBSD
+ - OpenBSD
+ - NetBSD
+ - Microsoft Windows
+   - Cygwin, MinGW and MSYS2
+ - OS X
+
+
+Copyright and license
+---------------------
+
+libjaylink is licensed under the terms of the GNU General Public License (GPL),
+version 2 or later. See COPYING file for details.
+
+
+Website
+-------
+
+<http://git.zapb.de/libjaylink.git>
diff --git a/src/jtag/drivers/libjaylink/autogen.sh b/src/jtag/drivers/libjaylink/autogen.sh
new file mode 100755
index 0000000..1df262f
--- /dev/null
+++ b/src/jtag/drivers/libjaylink/autogen.sh
@@ -0,0 +1,34 @@
+#!/bin/sh
+##
+## This file is part of the libjaylink project.
+##
+## Copyright (C) 2014-2015 Marc Schink <jaylink-dev@marcschink.de>
+##
+## This program is free software: you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation, either version 2 of the License, or
+## (at your option) any later version.
+##
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+## GNU General Public License for more details.
+##
+## You should have received a copy of the GNU General Public License
+## along with this program.  If not, see <http://www.gnu.org/licenses/>.
+##
+
+OS=`uname -s`
+LIBTOOLIZE=libtoolize
+
+if [ "x$OS" = "xDarwin" ]; then
+	LIBTOOLIZE=glibtoolize
+fi
+
+echo "Generating build system..."
+
+$LIBTOOLIZE --install --copy || exit 1
+aclocal -I m4 || exit 1
+autoheader || exit 1
+autoconf || exit 1
+automake --add-missing --copy || exit 1
diff --git a/src/jtag/drivers/libjaylink/configure.ac b/src/jtag/drivers/libjaylink/configure.ac
new file mode 100644
index 0000000..de5919c
--- /dev/null
+++ b/src/jtag/drivers/libjaylink/configure.ac
@@ -0,0 +1,140 @@
+##
+## This file is part of the libjaylink project.
+##
+## Copyright (C) 2014-2015 Marc Schink <jaylink-dev@marcschink.de>
+##
+## This program is free software: you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation, either version 2 of the License, or
+## (at your option) any later version.
+##
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+## GNU General Public License for more details.
+##
+## You should have received a copy of the GNU General Public License
+## along with this program.  If not, see <http://www.gnu.org/licenses/>.
+##
+
+AC_PREREQ([2.64])
+
+AC_INIT([libjaylink], [0.2.0], [jaylink-dev@marcschink.de], [libjaylink],
+	[http://git.zapb.de/libjaylink.git])
+AC_CONFIG_HEADERS([config.h])
+AC_CONFIG_MACRO_DIR([m4])
+AC_CONFIG_AUX_DIR([build-aux])
+
+AC_CANONICAL_HOST
+
+AM_INIT_AUTOMAKE([-Wall -Werror])
+
+# Enable additional compiler warnings via -Wall and -Wextra. Use hidden
+# visibility for all non-static symbols by default with -fvisibility=hidden.
+JAYLINK_CFLAGS="-Wall -Wextra -Werror -fvisibility=hidden"
+
+# Checks for programs.
+AC_PROG_CC
+
+# Automake >= 1.12 requires AM_PROG_AR when using options -Wall and -Werror.
+# To be compatible with older versions of Automake use AM_PROG_AR if it's
+# defined only. This line must occur before LT_INIT.
+m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
+
+# Initialize libtool.
+LT_INIT
+
+# Initialize pkg-config.
+PKG_PROG_PKG_CONFIG
+
+# Checks for libraries.
+
+# Check for libusb-1.0 which is always needed.
+PKG_CHECK_MODULES([libusb], [libusb-1.0 >= 1.0.9],
+	[HAVE_LIBUSB=yes], [HAVE_LIBUSB=no])
+
+AS_IF([test "x$HAVE_LIBUSB" = "xyes"],
+	[libusb_msg="yes"], [libusb_msg="no (missing: libusb-1.0)"])
+
+# Checks for header files.
+
+# Checks for typedefs, structures, and compiler characteristics.
+AC_C_BIGENDIAN
+
+# Checks for library functions.
+
+# Disable progress and informational output of libtool.
+AC_SUBST([AM_LIBTOOLFLAGS], '--silent')
+
+JAYLINK_SET_PACKAGE_VERSION([JAYLINK_VERSION_PACKAGE], [AC_PACKAGE_VERSION])
+
+# Libtool interface version of libjaylink. This is not the same as the package
+# version. For information about the versioning system of libtool, see:
+# http://www.gnu.org/software/libtool/manual/libtool.html#Libtool-versioning
+JAYLINK_SET_LIBRARY_VERSION([JAYLINK_VERSION_LIBRARY], [0:0:0])
+
+AC_ARG_ENABLE([subproject-build], AS_HELP_STRING([--enable-subproject-build],
+	[enable sub-project build [default=no]]))
+
+AM_CONDITIONAL([SUBPROJECT_BUILD],
+	[test "x$enable_subproject_build" = "xyes"])
+
+AC_ARG_WITH([libusb], [AS_HELP_STRING([--without-libusb],
+	[disable libusb support [default=detect]])])
+
+AS_IF([test "x$with_libusb" != "xno"],
+	[with_libusb="yes"])
+
+AS_IF([test "x$with_libusb$HAVE_LIBUSB" = "xyesyes"],
+	[AC_DEFINE([HAVE_LIBUSB], [1], [Define to 1 if libusb is available.])])
+
+AS_IF([test "x$with_libusb" != "xyes"],
+	[libusb_msg="no (disabled)"])
+
+AS_IF([test "x$with_libusb$HAVE_LIBUSB" = "xyesyes"],
+	[JAYLINK_PKG_LIBS="libusb-1.0"])
+
+AM_CONDITIONAL([HAVE_LIBUSB],
+	[test "x$with_libusb$HAVE_LIBUSB" = "xyesyes"])
+
+# Libtool interface version is not used for sub-project build as libjaylink is
+# built as libtool convenience library.
+AS_IF([test "x$enable_subproject_build" != "xyes"],
+	[JAYLINK_LDFLAGS="-version-info $JAYLINK_VERSION_LIBRARY"])
+
+# Use C99 compatible stdio functions on MinGW instead of the incompatible
+# functions provided by Microsoft.
+AS_CASE([$host_os], [mingw*],
+	[AC_DEFINE([__USE_MINGW_ANSI_STDIO], [1],
+		[Define to 1 to use C99 compatible stdio functions on MinGW.])])
+
+# Add the Winsock2 library on MinGW for socket and other network-related
+# functions.
+AS_CASE([$host_os], [mingw*], [JAYLINK_LIBS="$JAYLINK_LIBS -lws2_32"])
+
+AC_SUBST([JAYLINK_CFLAGS])
+AC_SUBST([JAYLINK_LDFLAGS])
+AC_SUBST([JAYLINK_LIBS])
+AC_SUBST([JAYLINK_PKG_LIBS])
+
+AC_CONFIG_FILES([Makefile])
+AC_CONFIG_FILES([libjaylink/Makefile])
+AC_CONFIG_FILES([libjaylink/version.h])
+AC_CONFIG_FILES([libjaylink.pc])
+AC_CONFIG_FILES([Doxyfile])
+
+AC_OUTPUT
+
+echo
+echo "libjaylink configuration summary:"
+echo " - Package version ................ $JAYLINK_VERSION_PACKAGE"
+echo " - Library version ................ $JAYLINK_VERSION_LIBRARY"
+echo " - Installation prefix ............ $prefix"
+echo " - Building on .................... $build"
+echo " - Building for ................... $host"
+
+echo
+echo "Enabled transports:"
+echo " - USB ............................ $libusb_msg"
+echo " - TCP ............................ yes"
+echo
diff --git a/src/jtag/drivers/libjaylink/contrib/99-libjaylink.rules b/src/jtag/drivers/libjaylink/contrib/99-libjaylink.rules
new file mode 100644
index 0000000..120e51a
--- /dev/null
+++ b/src/jtag/drivers/libjaylink/contrib/99-libjaylink.rules
@@ -0,0 +1,41 @@
+##
+## This file is part of the libjaylink project.
+##
+## Copyright (C) 2015 Marc Schink <jaylink-dev@marcschink.de>
+##
+## This program is free software: you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation, either version 2 of the License, or
+## (at your option) any later version.
+##
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+## GNU General Public License for more details.
+##
+## You should have received a copy of the GNU General Public License
+## along with this program.  If not, see <http://www.gnu.org/licenses/>.
+##
+
+ACTION!="add", GOTO="libjaylink_end_rules"
+SUBSYSTEM!="usb", GOTO="libjaylink_end_rules"
+
+ATTRS{idVendor}=="1366", ATTRS{idProduct}=="0101", MODE="664", GROUP="plugdev"
+ATTRS{idVendor}=="1366", ATTRS{idProduct}=="0102", MODE="664", GROUP="plugdev"
+ATTRS{idVendor}=="1366", ATTRS{idProduct}=="0103", MODE="664", GROUP="plugdev"
+ATTRS{idVendor}=="1366", ATTRS{idProduct}=="0104", MODE="664", GROUP="plugdev"
+ATTRS{idVendor}=="1366", ATTRS{idProduct}=="0105", MODE="664", GROUP="plugdev"
+ATTRS{idVendor}=="1366", ATTRS{idProduct}=="0107", MODE="664", GROUP="plugdev"
+ATTRS{idVendor}=="1366", ATTRS{idProduct}=="0108", MODE="664", GROUP="plugdev"
+
+ATTRS{idVendor}=="1366", ATTRS{idProduct}=="1010", MODE="664", GROUP="plugdev"
+ATTRS{idVendor}=="1366", ATTRS{idProduct}=="1011", MODE="664", GROUP="plugdev"
+ATTRS{idVendor}=="1366", ATTRS{idProduct}=="1012", MODE="664", GROUP="plugdev"
+ATTRS{idVendor}=="1366", ATTRS{idProduct}=="1013", MODE="664", GROUP="plugdev"
+ATTRS{idVendor}=="1366", ATTRS{idProduct}=="1014", MODE="664", GROUP="plugdev"
+ATTRS{idVendor}=="1366", ATTRS{idProduct}=="1015", MODE="664", GROUP="plugdev"
+ATTRS{idVendor}=="1366", ATTRS{idProduct}=="1016", MODE="664", GROUP="plugdev"
+ATTRS{idVendor}=="1366", ATTRS{idProduct}=="1017", MODE="664", GROUP="plugdev"
+ATTRS{idVendor}=="1366", ATTRS{idProduct}=="1018", MODE="664", GROUP="plugdev"
+
+LABEL="libjaylink_end_rules"
diff --git a/src/jtag/drivers/libjaylink/libjaylink.pc.in b/src/jtag/drivers/libjaylink/libjaylink.pc.in
new file mode 100644
index 0000000..a5efd3a
--- /dev/null
+++ b/src/jtag/drivers/libjaylink/libjaylink.pc.in
@@ -0,0 +1,11 @@
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: libjaylink
+Description: Library to access J-Link devices
+Version: @VERSION@
+Requires.private: @JAYLINK_PKG_LIBS@
+Libs: -L${libdir} -ljaylink
+Cflags: -I${includedir}
diff --git a/src/jtag/drivers/libjaylink/libjaylink/Makefile.am b/src/jtag/drivers/libjaylink/libjaylink/Makefile.am
new file mode 100644
index 0000000..62c5489
--- /dev/null
+++ b/src/jtag/drivers/libjaylink/libjaylink/Makefile.am
@@ -0,0 +1,62 @@
+##
+## This file is part of the libjaylink project.
+##
+## Copyright (C) 2014-2015 Marc Schink <jaylink-dev@marcschink.de>
+##
+## This program is free software: you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation, either version 2 of the License, or
+## (at your option) any later version.
+##
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+## GNU General Public License for more details.
+##
+## You should have received a copy of the GNU General Public License
+## along with this program.  If not, see <http://www.gnu.org/licenses/>.
+##
+
+if SUBPROJECT_BUILD
+noinst_LTLIBRARIES = libjaylink.la
+else
+lib_LTLIBRARIES = libjaylink.la
+
+library_includedir = $(includedir)/libjaylink
+library_include_HEADERS = libjaylink.h
+nodist_library_include_HEADERS = version.h
+endif
+
+libjaylink_la_SOURCES = \
+	buffer.c \
+	core.c \
+	device.c \
+	discovery.c \
+	discovery_tcp.c \
+	emucom.c \
+	error.c \
+	fileio.c \
+	jtag.c \
+	list.c \
+	log.c \
+	socket.c \
+	strutil.c \
+	swd.c \
+	swo.c \
+	target.c \
+	transport.c \
+	transport_tcp.c \
+	util.c \
+	version.c
+
+libjaylink_la_CFLAGS = $(JAYLINK_CFLAGS)
+libjaylink_la_LDFLAGS = $(JAYLINK_LDFLAGS) -no-undefined
+libjaylink_la_LIBADD = $(JAYLINK_LIBS)
+
+if HAVE_LIBUSB
+libjaylink_la_SOURCES += discovery_usb.c transport_usb.c
+libjaylink_la_CFLAGS += $(libusb_CFLAGS)
+libjaylink_la_LIBADD += $(libusb_LIBS)
+endif
+
+noinst_HEADERS = libjaylink-internal.h
diff --git a/src/jtag/drivers/libjaylink/libjaylink/buffer.c b/src/jtag/drivers/libjaylink/libjaylink/buffer.c
new file mode 100644
index 0000000..527c25e
--- /dev/null
+++ b/src/jtag/drivers/libjaylink/libjaylink/buffer.c
@@ -0,0 +1,140 @@
+/*
+ * This file is part of the libjaylink project.
+ *
+ * Copyright (C) 2014-2015 Marc Schink <jaylink-dev@marcschink.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdint.h>
+#include <string.h>
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+#include "libjaylink-internal.h"
+
+/**
+ * @file
+ *
+ * Buffer helper functions.
+ */
+
+/**
+ * Write a 16-bit unsigned integer value to a buffer.
+ *
+ * The value is stored in the buffer in device byte order.
+ *
+ * @param[out] buffer Buffer to write the value into.
+ * @param[in] value Value to write into the buffer in host byte order.
+ * @param[in] offset Offset of the value within the buffer in bytes.
+ */
+JAYLINK_PRIV void buffer_set_u16(uint8_t *buffer, uint16_t value,
+		size_t offset)
+{
+	/*
+	 * Store the value in the buffer and swap byte order depending on the
+	 * host byte order.
+	 */
+#ifdef WORDS_BIGENDIAN
+	buffer[offset + 0] = value;
+	buffer[offset + 1] = value >> 8;
+#else
+	memcpy(buffer + offset, &value, sizeof(value));
+#endif
+}
+
+/**
+ * Read a 16-bit unsigned integer value from a buffer.
+ *
+ * The value in the buffer is expected to be stored in device byte order.
+ *
+ * @param[in] buffer Buffer to read the value from.
+ * @param[in] offset Offset of the value within the buffer in bytes.
+ *
+ * @return The value read from the buffer in host byte order.
+ */
+JAYLINK_PRIV uint16_t buffer_get_u16(const uint8_t *buffer, size_t offset)
+{
+	uint16_t value;
+
+	/*
+	 * Read the value from the buffer and swap byte order depending on the
+	 * host byte order.
+	 */
+#ifdef WORDS_BIGENDIAN
+	value = (((uint16_t)buffer[offset + 1])) | \
+		(((uint16_t)buffer[offset + 0]) << 8);
+#else
+	memcpy(&value, buffer + offset, sizeof(value));
+#endif
+
+	return value;
+}
+
+/**
+ * Write a 32-bit unsigned integer value to a buffer.
+ *
+ * The value is stored in the buffer in device byte order.
+ *
+ * @param[out] buffer Buffer to write the value into.
+ * @param[in] value Value to write into the buffer in host byte order.
+ * @param[in] offset Offset of the value within the buffer in bytes.
+ */
+JAYLINK_PRIV void buffer_set_u32(uint8_t *buffer, uint32_t value,
+		size_t offset)
+{
+	/*
+	 * Store the value in the buffer and swap byte order depending on the
+	 * host byte order.
+	 */
+#ifdef WORDS_BIGENDIAN
+	buffer[offset + 0] = value;
+	buffer[offset + 1] = value >> 8;
+	buffer[offset + 2] = value >> 16;
+	buffer[offset + 3] = value >> 24;
+#else
+	memcpy(buffer + offset, &value, sizeof(value));
+#endif
+}
+
+/**
+ * Read a 32-bit unsigned integer value from a buffer.
+ *
+ * The value in the buffer is expected to be stored in device byte order.
+ *
+ * @param[in] buffer Buffer to read the value from.
+ * @param[in] offset Offset of the value within the buffer in bytes.
+ *
+ * @return The value read from the buffer in host byte order.
+ */
+JAYLINK_PRIV uint32_t buffer_get_u32(const uint8_t *buffer, size_t offset)
+{
+	uint32_t value;
+
+	/*
+	 * Read the value from the buffer and swap byte order depending on the
+	 * host byte order.
+	 */
+#ifdef WORDS_BIGENDIAN
+	value = (((uint32_t)buffer[offset + 3])) | \
+		(((uint32_t)buffer[offset + 2]) << 8) | \
+		(((uint32_t)buffer[offset + 1]) << 16) | \
+		(((uint32_t)buffer[offset + 0]) << 24);
+#else
+	memcpy(&value, buffer + offset, sizeof(value));
+#endif
+
+	return value;
+}
diff --git a/src/jtag/drivers/libjaylink/libjaylink/core.c b/src/jtag/drivers/libjaylink/libjaylink/core.c
new file mode 100644
index 0000000..509b89d
--- /dev/null
+++ b/src/jtag/drivers/libjaylink/libjaylink/core.c
@@ -0,0 +1,219 @@
+/*
+ * This file is part of the libjaylink project.
+ *
+ * Copyright (C) 2014-2016 Marc Schink <jaylink-dev@marcschink.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <stdlib.h>
+#include <stdbool.h>
+#ifdef _WIN32
+#include <winsock2.h>
+#endif
+#ifdef HAVE_LIBUSB
+#include <libusb.h>
+#endif
+
+#include "libjaylink.h"
+#include "libjaylink-internal.h"
+
+/**
+ * @mainpage
+ *
+ * @section sec_intro Introduction
+ *
+ * This document describes the API of libjaylink.
+ *
+ * libjaylink is a shared library written in C to access SEGGER J-Link and
+ * compatible devices.
+ *
+ * @section sec_error Error handling
+ *
+ * The libjaylink functions which can fail use the return value to indicate an
+ * error. The functions typically return an error code of #jaylink_error.
+ * For each function, all possible error codes and their detailed descriptions
+ * are documented. As the possible error codes returned by a function may
+ * change it is recommended to also always cover unexpected values when
+ * checking for error codes to be compatible with later versions of libjaylink.
+ *
+ * There are a few exceptions where a function directly returns the result
+ * instead of an error code because it is more convenient from an API
+ * perspective and because there is only a single reason for failure which is
+ * clearly distinguishable from the result.
+ *
+ * @section sec_license Copyright and license
+ *
+ * libjaylink is licensed under the terms of the GNU General Public
+ * License (GPL), version 2 or later.
+ *
+ * @section sec_website Website
+ *
+ * <a href="http://git.zapb.de/libjaylink.git">git.zapb.de/libjaylink.git</a>
+ */
+
+/**
+ * @file
+ *
+ * Core library functions.
+ */
+
+/**
+ * Initialize libjaylink.
+ *
+ * This function must be called before any other libjaylink function is called.
+ *
+ * @param[out] ctx Newly allocated libjaylink context on success, and undefined
+ *                 on failure.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_MALLOC Memory allocation error.
+ * @retval JAYLINK_ERR Other error conditions.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_init(struct jaylink_context **ctx)
+{
+	int ret;
+	struct jaylink_context *context;
+#ifdef _WIN32
+	WSADATA wsa_data;
+#endif
+
+	if (!ctx)
+		return JAYLINK_ERR_ARG;
+
+	context = malloc(sizeof(struct jaylink_context));
+
+	if (!context)
+		return JAYLINK_ERR_MALLOC;
+
+#ifdef HAVE_LIBUSB
+	if (libusb_init(&context->usb_ctx) != LIBUSB_SUCCESS) {
+		free(context);
+		return JAYLINK_ERR;
+	}
+#endif
+
+#ifdef _WIN32
+	ret = WSAStartup(MAKEWORD(2, 2), &wsa_data);
+
+	if (ret != 0) {
+#ifdef HAVE_LIBUSB
+		libusb_exit(context->usb_ctx);
+#endif
+		free(context);
+		return JAYLINK_ERR;
+	}
+
+	if (LOBYTE(wsa_data.wVersion) != 2 || HIBYTE(wsa_data.wVersion) != 2) {
+#ifdef HAVE_LIBUSB
+		libusb_exit(context->usb_ctx);
+#endif
+		free(context);
+		return JAYLINK_ERR;
+	}
+#endif
+
+	context->devs = NULL;
+	context->discovered_devs = NULL;
+
+	/* Show error and warning messages by default. */
+	context->log_level = JAYLINK_LOG_LEVEL_WARNING;
+
+	context->log_callback = &log_vprintf;
+	context->log_callback_data = NULL;
+
+	ret = jaylink_log_set_domain(context, JAYLINK_LOG_DOMAIN_DEFAULT);
+
+	if (ret != JAYLINK_OK) {
+#ifdef HAVE_LIBUSB
+		libusb_exit(context->usb_ctx);
+#endif
+#ifdef _WIN32
+		WSACleanup();
+#endif
+		free(context);
+		return ret;
+	}
+
+	*ctx = context;
+
+	return JAYLINK_OK;
+}
+
+/**
+ * Shutdown libjaylink.
+ *
+ * @param[in,out] ctx libjaylink context.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_exit(struct jaylink_context *ctx)
+{
+	struct list *item;
+
+	if (!ctx)
+		return JAYLINK_ERR_ARG;
+
+	item = ctx->discovered_devs;
+
+	while (item) {
+		jaylink_unref_device((struct jaylink_device *)item->data);
+		item = item->next;
+	}
+
+	list_free(ctx->discovered_devs);
+	list_free(ctx->devs);
+
+#ifdef HAVE_LIBUSB
+	libusb_exit(ctx->usb_ctx);
+#endif
+#ifdef _WIN32
+	WSACleanup();
+#endif
+	free(ctx);
+
+	return JAYLINK_OK;
+}
+
+/**
+ * Check for a capability of libjaylink.
+ *
+ * @param[in] cap Capability to check for.
+ *
+ * @retval true Capability is supported.
+ * @retval false Capability is not supported or invalid argument.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API bool jaylink_library_has_cap(enum jaylink_capability cap)
+{
+	switch (cap) {
+#ifdef HAVE_LIBUSB
+	case JAYLINK_CAP_HIF_USB:
+		return true;
+#endif
+	default:
+		return false;
+	}
+}
diff --git a/src/jtag/drivers/libjaylink/libjaylink/device.c b/src/jtag/drivers/libjaylink/libjaylink/device.c
new file mode 100644
index 0000000..a3bddf6
--- /dev/null
+++ b/src/jtag/drivers/libjaylink/libjaylink/device.c
@@ -0,0 +1,1707 @@
+/*
+ * This file is part of the libjaylink project.
+ *
+ * Copyright (C) 2014-2016 Marc Schink <jaylink-dev@marcschink.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <stdlib.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <string.h>
+#ifdef _WIN32
+#include <winsock2.h>
+#else
+#include <sys/socket.h>
+#include <arpa/inet.h>
+#endif
+#ifdef HAVE_LIBUSB
+#include <libusb.h>
+#endif
+
+#include "libjaylink.h"
+#include "libjaylink-internal.h"
+
+/**
+ * @file
+ *
+ * Device enumeration and handling.
+ */
+
+/** @cond PRIVATE */
+#define CMD_GET_VERSION		0x01
+#define CMD_GET_HW_STATUS	0x07
+#define CMD_REGISTER		0x09
+#define CMD_GET_HW_INFO		0xc1
+#define CMD_GET_COUNTERS	0xc2
+#define CMD_GET_FREE_MEMORY	0xd4
+#define CMD_GET_CAPS		0xe8
+#define CMD_GET_EXT_CAPS	0xed
+#define CMD_GET_HW_VERSION	0xf0
+#define CMD_READ_CONFIG		0xf2
+#define CMD_WRITE_CONFIG	0xf3
+
+#define REG_CMD_REGISTER	0x64
+#define REG_CMD_UNREGISTER	0x65
+
+/** Size of the registration header in bytes. */
+#define REG_HEADER_SIZE		8
+/** Minimum registration information size in bytes. */
+#define REG_MIN_SIZE		0x4c
+/** Maximum registration information size in bytes. */
+#define REG_MAX_SIZE		0x200
+/** Size of a connection entry in bytes. */
+#define REG_CONN_INFO_SIZE	16
+/** @endcond */
+
+/** @private */
+JAYLINK_PRIV struct jaylink_device *device_allocate(
+		struct jaylink_context *ctx)
+{
+	struct jaylink_device *dev;
+	struct list *list;
+
+	dev = malloc(sizeof(struct jaylink_device));
+
+	if (!dev)
+		return NULL;
+
+	list = list_prepend(ctx->devs, dev);
+
+	if (!list) {
+		free(dev);
+		return NULL;
+	}
+
+	ctx->devs = list;
+
+	dev->ctx = ctx;
+	dev->ref_count = 1;
+
+	return dev;
+}
+
+static struct jaylink_device **allocate_device_list(size_t length)
+{
+	struct jaylink_device **list;
+
+	list = malloc(sizeof(struct jaylink_device *) * (length + 1));
+
+	if (!list)
+		return NULL;
+
+	list[length] = NULL;
+
+	return list;
+}
+
+/**
+ * Get available devices.
+ *
+ * @param[in,out] ctx libjaylink context.
+ * @param[out] devs Newly allocated array which contains instances of available
+ *                  devices on success, and undefined on failure. The array is
+ *                  NULL-terminated and must be free'd by the caller with
+ *                  jaylink_free_devices().
+ * @param[out] count Number of available devices on success, and undefined on
+ *                   failure. Can be NULL.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_MALLOC Memory allocation error.
+ * @retval JAYLINK_ERR Other error conditions.
+ *
+ * @see jaylink_discovery_scan()
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_get_devices(struct jaylink_context *ctx,
+		struct jaylink_device ***devs, size_t *count)
+{
+	size_t num;
+	struct list *item;
+	struct jaylink_device **tmp;
+	struct jaylink_device *dev;
+	size_t i;
+
+	if (!ctx || !devs)
+		return JAYLINK_ERR_ARG;
+
+	num = list_length(ctx->discovered_devs);
+	tmp = allocate_device_list(num);
+
+	if (!tmp) {
+		log_err(ctx, "Failed to allocate device list.");
+		return JAYLINK_ERR_MALLOC;
+	}
+
+	item = ctx->discovered_devs;
+
+	for (i = 0; i < num; i++) {
+		dev = (struct jaylink_device *)item->data;
+		tmp[i] = jaylink_ref_device(dev);
+		item = item->next;
+	}
+
+	if (count)
+		*count = num;
+
+	*devs = tmp;
+
+	return JAYLINK_OK;
+}
+
+/**
+ * Free devices.
+ *
+ * @param[in,out] devs Array of device instances. Must be NULL-terminated.
+ * @param[in] unref Determines whether the device instances should be
+ *                  unreferenced.
+ *
+ * @see jaylink_get_devices()
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API void jaylink_free_devices(struct jaylink_device **devs, bool unref)
+{
+	size_t i;
+
+	if (!devs)
+		return;
+
+	if (unref) {
+		for (i = 0; devs[i]; i++)
+			jaylink_unref_device(devs[i]);
+	}
+
+	free(devs);
+}
+
+/**
+ * Get the host interface of a device.
+ *
+ * @param[in] dev Device instance.
+ * @param[out] iface Host interface of the device on success, and undefined on
+ *                   failure.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_device_get_host_interface(
+		const struct jaylink_device *dev,
+		enum jaylink_host_interface *iface)
+{
+	if (!dev || !iface)
+		return JAYLINK_ERR_ARG;
+
+	*iface = dev->iface;
+
+	return JAYLINK_OK;
+}
+
+/**
+ * Get the serial number of a device.
+ *
+ * @note This serial number is for enumeration purpose only and might differ
+ *       from the real serial number of the device.
+ *
+ * @param[in] dev Device instance.
+ * @param[out] serial_number Serial number of the device on success, and
+ *                           undefined on failure.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_NOT_AVAILABLE Serial number is not available.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_device_get_serial_number(
+		const struct jaylink_device *dev, uint32_t *serial_number)
+{
+	if (!dev || !serial_number)
+		return JAYLINK_ERR_ARG;
+
+	if (!dev->valid_serial_number)
+		return JAYLINK_ERR_NOT_AVAILABLE;
+
+	*serial_number = dev->serial_number;
+
+	return JAYLINK_OK;
+}
+
+/**
+ * Get the USB address of a device.
+ *
+ * @note Identification of a device with the USB address is deprecated and the
+ *       serial number should be used instead.
+ *
+ * @param[in] dev Device instance.
+ * @param[out] address USB address of the device on success, and undefined on
+ *                     failure.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_NOT_SUPPORTED Supported for devices with host interface
+ *                                   #JAYLINK_HIF_USB only.
+ *
+ * @see jaylink_device_get_serial_number()
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_device_get_usb_address(
+		const struct jaylink_device *dev,
+		enum jaylink_usb_address *address)
+{
+	if (!dev || !address)
+		return JAYLINK_ERR_ARG;
+
+	if (dev->iface != JAYLINK_HIF_USB)
+		return JAYLINK_ERR_NOT_SUPPORTED;
+
+#ifdef HAVE_LIBUSB
+	*address = dev->usb_address;
+
+	return JAYLINK_OK;
+#else
+	return JAYLINK_ERR_NOT_SUPPORTED;
+#endif
+}
+
+/**
+ * Get the IPv4 address string of a device.
+ *
+ * @param[in] dev Device instance.
+ * @param[out] address IPv4 address string in quad-dotted decimal format of the
+ *                     device on success and undefined on failure.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_NOT_SUPPORTED Supported for devices with host interface
+ *                                   #JAYLINK_HIF_TCP only.
+ *
+ * @since 0.2.0
+ */
+JAYLINK_API int jaylink_device_get_ipv4_address(
+		const struct jaylink_device *dev, char *address)
+{
+	if (!dev || !address)
+		return JAYLINK_ERR_ARG;
+
+	if (dev->iface != JAYLINK_HIF_TCP)
+		return JAYLINK_ERR_NOT_SUPPORTED;
+
+	memcpy(address, dev->ipv4_address, sizeof(dev->ipv4_address));
+
+	return JAYLINK_OK;
+}
+
+/**
+ * Get the MAC address of a device.
+ *
+ * @param[in] dev Device instance.
+ * @param[out] address MAC address of the device on success and undefined on
+ *                     failure. The length of the MAC address is
+ *                     #JAYLINK_MAC_ADDRESS_LENGTH bytes.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_NOT_SUPPORTED Supported for devices with host interface
+ *                                   #JAYLINK_HIF_TCP only.
+ * @retval JAYLINK_ERR_NOT_AVAILABLE MAC address is not available.
+ *
+ * @since 0.2.0
+ */
+JAYLINK_API int jaylink_device_get_mac_address(
+		const struct jaylink_device *dev, uint8_t *address)
+{
+	if (!dev || !address)
+		return JAYLINK_ERR_ARG;
+
+	if (dev->iface != JAYLINK_HIF_TCP)
+		return JAYLINK_ERR_NOT_SUPPORTED;
+
+	if (!dev->has_mac_address)
+		return JAYLINK_ERR_NOT_AVAILABLE;
+
+	memcpy(address, dev->mac_address, sizeof(dev->mac_address));
+
+	return JAYLINK_OK;
+}
+
+/**
+ * Get the hardware version of a device.
+ *
+ * @note The hardware type can not be obtained by this function, use
+ *       jaylink_get_hardware_version() instead.
+ *
+ * @param[in] dev Device instance.
+ * @param[out] version Hardware version of the device on success and undefined
+ *                     on failure.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_NOT_SUPPORTED Supported for devices with host interface
+ *                                   #JAYLINK_HIF_TCP only.
+ * @retval JAYLINK_ERR_NOT_AVAILABLE Hardware version is not available.
+ *
+ * @since 0.2.0
+ */
+JAYLINK_API int jaylink_device_get_hardware_version(
+		const struct jaylink_device *dev,
+		struct jaylink_hardware_version *version)
+{
+	if (!dev || !version)
+		return JAYLINK_ERR_ARG;
+
+	if (dev->iface != JAYLINK_HIF_TCP)
+		return JAYLINK_ERR_NOT_SUPPORTED;
+
+	if (!dev->has_hw_version)
+		return JAYLINK_ERR_NOT_AVAILABLE;
+
+	*version = dev->hw_version;
+
+	return JAYLINK_OK;
+}
+
+/**
+ * Get the product name of a device.
+ *
+ * @param[in] dev Device instance.
+ * @param[out] name Product name of the device on success and undefined on
+ *                  failure. The maximum length of the product name is
+ *                  #JAYLINK_PRODUCT_NAME_MAX_LENGTH bytes.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_NOT_SUPPORTED Supported for devices with host interface
+ *                                   #JAYLINK_HIF_TCP only.
+ * @retval JAYLINK_ERR_NOT_AVAILABLE Product name is not available.
+ *
+ * @since 0.2.0
+ */
+JAYLINK_API int jaylink_device_get_product_name(
+		const struct jaylink_device *dev, char *name)
+{
+	if (!dev || !name)
+		return JAYLINK_ERR_ARG;
+
+	if (dev->iface != JAYLINK_HIF_TCP)
+		return JAYLINK_ERR_NOT_SUPPORTED;
+
+	if (!dev->has_product_name)
+		return JAYLINK_ERR_NOT_AVAILABLE;
+
+	memcpy(name, dev->product_name, sizeof(dev->product_name));
+
+	return JAYLINK_OK;
+}
+
+/**
+ * Get the nickname of a device.
+ *
+ * @param[in] dev Device instance.
+ * @param[out] nickname Nickname of the device on success and undefined on
+ *                      failure. The maximum length of the nickname is
+ *                      #JAYLINK_NICKNAME_MAX_LENGTH bytes.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_NOT_SUPPORTED Supported for devices with host interface
+ *                                   #JAYLINK_HIF_TCP only.
+ * @retval JAYLINK_ERR_NOT_AVAILABLE Nickname is not available.
+ *
+ * @since 0.2.0
+ */
+JAYLINK_API int jaylink_device_get_nickname(const struct jaylink_device *dev,
+		char *nickname)
+{
+	if (!dev || !nickname)
+		return JAYLINK_ERR_ARG;
+
+	if (dev->iface != JAYLINK_HIF_TCP)
+		return JAYLINK_ERR_NOT_SUPPORTED;
+
+	if (!dev->has_nickname)
+		return JAYLINK_ERR_NOT_AVAILABLE;
+
+	memcpy(nickname, dev->nickname, sizeof(dev->nickname));
+
+	return JAYLINK_OK;
+}
+
+/**
+ * Increment the reference count of a device.
+ *
+ * @param[in,out] dev Device instance.
+ *
+ * @return The given device instance on success, or NULL on invalid argument.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API struct jaylink_device *jaylink_ref_device(
+		struct jaylink_device *dev)
+{
+	if (!dev)
+		return NULL;
+
+	dev->ref_count++;
+
+	return dev;
+}
+
+/**
+ * Decrement the reference count of a device.
+ *
+ * @param[in,out] dev Device instance.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API void jaylink_unref_device(struct jaylink_device *dev)
+{
+	struct jaylink_context *ctx;
+
+	if (!dev)
+		return;
+
+	dev->ref_count--;
+
+	if (!dev->ref_count) {
+		ctx = dev->ctx;
+		ctx->devs = list_remove(dev->ctx->devs, dev);
+
+		if (dev->iface == JAYLINK_HIF_USB) {
+#ifdef HAVE_LIBUSB
+			log_dbg(ctx, "Device destroyed (bus:address = "
+				"%03u:%03u).",
+				libusb_get_bus_number(dev->usb_dev),
+				libusb_get_device_address(dev->usb_dev));
+
+			libusb_unref_device(dev->usb_dev);
+#endif
+		} else if (dev->iface == JAYLINK_HIF_TCP) {
+			log_dbg(ctx, "Device destroyed (IPv4 address = %s).",
+				dev->ipv4_address);
+		} else {
+			log_err(ctx, "BUG: Invalid host interface: %u.",
+				dev->iface);
+		}
+
+		free(dev);
+	}
+}
+
+static struct jaylink_device_handle *allocate_device_handle(
+		struct jaylink_device *dev)
+{
+	struct jaylink_device_handle *devh;
+
+	devh = malloc(sizeof(struct jaylink_device_handle));
+
+	if (!devh)
+		return NULL;
+
+	devh->dev = jaylink_ref_device(dev);
+
+	return devh;
+}
+
+static void free_device_handle(struct jaylink_device_handle *devh)
+{
+	jaylink_unref_device(devh->dev);
+	free(devh);
+}
+
+/**
+ * Open a device.
+ *
+ * @param[in,out] dev Device instance.
+ * @param[out] devh Newly allocated handle for the opened device on success,
+ *                  and undefined on failure.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_TIMEOUT A timeout occurred.
+ * @retval JAYLINK_ERR_MALLOC Memory allocation error.
+ * @retval JAYLINK_ERR_IO Input/output error.
+ * @retval JAYLINK_ERR Other error conditions.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_open(struct jaylink_device *dev,
+		struct jaylink_device_handle **devh)
+{
+	int ret;
+	struct jaylink_device_handle *handle;
+
+	if (!dev || !devh)
+		return JAYLINK_ERR_ARG;
+
+	handle = allocate_device_handle(dev);
+
+	if (!handle) {
+		log_err(dev->ctx, "Device handle malloc failed.");
+		return JAYLINK_ERR_MALLOC;
+	}
+
+	ret = transport_open(handle);
+
+	if (ret != JAYLINK_OK) {
+		free_device_handle(handle);
+		return ret;
+	}
+
+	*devh = handle;
+
+	return JAYLINK_OK;
+}
+
+/**
+ * Close a device.
+ *
+ * @param[in,out] devh Device instance.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR Other error conditions.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_close(struct jaylink_device_handle *devh)
+{
+	int ret;
+
+	if (!devh)
+		return JAYLINK_ERR_ARG;
+
+	ret = transport_close(devh);
+	free_device_handle(devh);
+
+	return ret;
+}
+
+/**
+ * Get the device instance from a device handle.
+ *
+ * @note The reference count of the device instance is not increased.
+ *
+ * @param[in] devh Device handle.
+ *
+ * @return The device instance on success, or NULL on invalid argument.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API struct jaylink_device *jaylink_get_device(
+		struct jaylink_device_handle *devh)
+{
+	if (!devh)
+		return NULL;
+
+	return devh->dev;
+}
+
+/**
+ * Retrieve the firmware version of a device.
+ *
+ * @param[in,out] devh Device handle.
+ * @param[out] version Newly allocated string which contains the firmware
+ *                     version  on success, and undefined if @p length is zero
+ *                     or on failure. The string is null-terminated and must be
+ *                     free'd by the caller.
+ * @param[out] length Length of the firmware version string including trailing
+ *                    null-terminator on success, and undefined on failure.
+ *                    Zero if no firmware version string is available.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_TIMEOUT A timeout occurred.
+ * @retval JAYLINK_ERR_MALLOC Memory allocation error.
+ * @retval JAYLINK_ERR_IO Input/output error.
+ * @retval JAYLINK_ERR Other error conditions.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_get_firmware_version(
+		struct jaylink_device_handle *devh, char **version,
+		size_t *length)
+{
+	int ret;
+	struct jaylink_context *ctx;
+	uint8_t buf[2];
+	uint16_t dummy;
+	char *tmp;
+
+	if (!devh || !version || !length)
+		return JAYLINK_ERR_ARG;
+
+	ctx = devh->dev->ctx;
+	ret = transport_start_write_read(devh, 1, 2, true);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_start_write_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	buf[0] = CMD_GET_VERSION;
+
+	ret = transport_write(devh, buf, 1);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_read(devh, buf, 2);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	dummy = buffer_get_u16(buf, 0);
+	*length = dummy;
+
+	if (!dummy)
+		return JAYLINK_OK;
+
+	ret = transport_start_read(devh, dummy);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_start_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	tmp = malloc(dummy);
+
+	if (!tmp) {
+		log_err(ctx, "Firmware version string malloc failed.");
+		return JAYLINK_ERR_MALLOC;
+	}
+
+	ret = transport_read(devh, (uint8_t *)tmp, dummy);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_read() failed: %s.",
+			jaylink_strerror(ret));
+		free(tmp);
+		return ret;
+	}
+
+	/* Last byte is reserved for null-terminator. */
+	tmp[dummy - 1] = 0;
+	*version = tmp;
+
+	return JAYLINK_OK;
+}
+
+/**
+ * Retrieve the hardware information of a device.
+ *
+ * @note This function must only be used if the device has the
+ *       #JAYLINK_DEV_CAP_GET_HW_INFO capability.
+ *
+ * @param[in,out] devh Device handle.
+ * @param[in] mask A bit field where each set bit represents hardware
+ *                 information to request. See #jaylink_hardware_info for a
+ *                 description of the hardware information and their bit
+ *                 positions.
+ * @param[out] info Array to store the hardware information on success. Its
+ *                  content is undefined on failure. The array must be large
+ *                  enough to contain at least as many elements as bits set in
+ *                  @a mask.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_TIMEOUT A timeout occurred.
+ * @retval JAYLINK_ERR_IO Input/output error.
+ * @retval JAYLINK_ERR Other error conditions.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_get_hardware_info(struct jaylink_device_handle *devh,
+		uint32_t mask, uint32_t *info)
+{
+	int ret;
+	struct jaylink_context *ctx;
+	uint8_t buf[5];
+	unsigned int i;
+	unsigned int num;
+	unsigned int length;
+
+	if (!devh || !mask || !info)
+		return JAYLINK_ERR_ARG;
+
+	ctx = devh->dev->ctx;
+	num = 0;
+
+	for (i = 0; i < 32; i++) {
+		if (mask & (1 << i))
+			num++;
+	}
+
+	length = num * sizeof(uint32_t);
+
+	ret = transport_start_write_read(devh, 5, length, true);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_start_write_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	buf[0] = CMD_GET_HW_INFO;
+	buffer_set_u32(buf, mask, 1);
+
+	ret = transport_write(devh, buf, 5);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_read(devh, (uint8_t *)info, length);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	for (i = 0; i < num; i++)
+		info[i] = buffer_get_u32((uint8_t *)info,
+			i * sizeof(uint32_t));
+
+	return JAYLINK_OK;
+}
+
+/**
+ * Retrieve the counter values of a device.
+ *
+ * @note This function must only be used if the device has the
+ *       #JAYLINK_DEV_CAP_GET_COUNTERS capability.
+ *
+ * @param[in,out] devh Device handle.
+ * @param[in] mask A bit field where each set bit represents a counter value to
+ *                 request. See #jaylink_counter for a description of the
+ *                 counters and their bit positions.
+ * @param[out] values Array to store the counter values on success. Its content
+ *                    is undefined on failure. The array must be large enough
+ *                    to contain at least as many elements as bits set in @p
+ *                    mask.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_TIMEOUT A timeout occurred.
+ * @retval JAYLINK_ERR_IO Input/output error.
+ * @retval JAYLINK_ERR Other error conditions.
+ *
+ * @since 0.2.0
+ */
+JAYLINK_API int jaylink_get_counters(struct jaylink_device_handle *devh,
+		uint32_t mask, uint32_t *values)
+{
+	int ret;
+	struct jaylink_context *ctx;
+	uint8_t buf[5];
+	unsigned int i;
+	unsigned int num;
+	unsigned int length;
+
+	if (!devh || !mask || !values)
+		return JAYLINK_ERR_ARG;
+
+	ctx = devh->dev->ctx;
+	num = 0;
+
+	for (i = 0; i < 32; i++) {
+		if (mask & (1 << i))
+			num++;
+	}
+
+	length = num * sizeof(uint32_t);
+	ret = transport_start_write_read(devh, 5, length, true);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_start_write_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	buf[0] = CMD_GET_COUNTERS;
+	buffer_set_u32(buf, mask, 1);
+
+	ret = transport_write(devh, buf, 5);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_read(devh, (uint8_t *)values, length);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	for (i = 0; i < num; i++)
+		values[i] = buffer_get_u32((uint8_t *)values,
+			i * sizeof(uint32_t));
+
+	return JAYLINK_OK;
+}
+
+/**
+ * Retrieve the hardware version of a device.
+ *
+ * @note This function must only be used if the device has the
+ *       #JAYLINK_DEV_CAP_GET_HW_VERSION capability.
+ *
+ * @warning This function may return a value for @p version where
+ *          #jaylink_hardware_version::type is not covered by
+ *          #jaylink_hardware_type.
+ *
+ * @param[in,out] devh Device handle.
+ * @param[out] version Hardware version on success, and undefined on failure.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_TIMEOUT A timeout occurred.
+ * @retval JAYLINK_ERR_IO Input/output error.
+ * @retval JAYLINK_ERR Other error conditions.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_get_hardware_version(
+		struct jaylink_device_handle *devh,
+		struct jaylink_hardware_version *version)
+{
+	int ret;
+	struct jaylink_context *ctx;
+	uint8_t buf[4];
+	uint32_t tmp;
+
+	if (!devh || !version)
+		return JAYLINK_ERR_ARG;
+
+	ctx = devh->dev->ctx;
+	ret = transport_start_write_read(devh, 1, 4, true);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_start_write_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	buf[0] = CMD_GET_HW_VERSION;
+
+	ret = transport_write(devh, buf, 1);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_read(devh, buf, 4);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	tmp = buffer_get_u32(buf, 0);
+
+	version->type = (tmp / 1000000) % 100;
+	version->major = (tmp / 10000) % 100;
+	version->minor = (tmp / 100) % 100;
+	version->revision = tmp % 100;
+
+	return JAYLINK_OK;
+}
+
+/**
+ * Retrieve the hardware status of a device.
+ *
+ * @param[in,out] devh Device handle.
+ * @param[out] status Hardware status on success, and undefined on failure.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_TIMEOUT A timeout occurred.
+ * @retval JAYLINK_ERR_IO Input/output error.
+ * @retval JAYLINK_ERR Other error conditions.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_get_hardware_status(struct jaylink_device_handle *devh,
+		struct jaylink_hardware_status *status)
+{
+	int ret;
+	struct jaylink_context *ctx;
+	uint8_t buf[8];
+
+	if (!devh || !status)
+		return JAYLINK_ERR_ARG;
+
+	ctx = devh->dev->ctx;
+	ret = transport_start_write_read(devh, 1, 8, true);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_start_write_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	buf[0] = CMD_GET_HW_STATUS;
+
+	ret = transport_write(devh, buf, 1);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_read(devh, buf, 8);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	status->target_voltage = buffer_get_u16(buf, 0);
+	status->tck = buf[2];
+	status->tdi = buf[3];
+	status->tdo = buf[4];
+	status->tms = buf[5];
+	status->tres = buf[6];
+	status->trst = buf[7];
+
+	return JAYLINK_OK;
+}
+
+/**
+ * Retrieve the capabilities of a device.
+ *
+ * The capabilities are stored in a 32-bit bit array consisting of
+ * #JAYLINK_DEV_CAPS_SIZE bytes where each individual bit represents a
+ * capability. The first bit of this array is the least significant bit of the
+ * first byte and the following bits are sequentially numbered in order of
+ * increasing bit significance and byte index. A set bit indicates a supported
+ * capability. See #jaylink_device_capability for a description of the
+ * capabilities and their bit positions.
+ *
+ * @param[in,out] devh Device handle.
+ * @param[out] caps Buffer to store capabilities on success. Its content is
+ *                  undefined on failure. The buffer must be large enough to
+ *                  contain at least #JAYLINK_DEV_CAPS_SIZE bytes.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_TIMEOUT A timeout occurred.
+ * @retval JAYLINK_ERR_IO Input/output error.
+ * @retval JAYLINK_ERR Other error conditions.
+ *
+ * @see jaylink_get_extended_caps()
+ * @see jaylink_has_cap()
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_get_caps(struct jaylink_device_handle *devh,
+		uint8_t *caps)
+{
+	int ret;
+	struct jaylink_context *ctx;
+	uint8_t buf[1];
+
+	if (!devh || !caps)
+		return JAYLINK_ERR_ARG;
+
+	ctx = devh->dev->ctx;
+	ret = transport_start_write_read(devh, 1, JAYLINK_DEV_CAPS_SIZE, true);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_start_write_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	buf[0] = CMD_GET_CAPS;
+
+	ret = transport_write(devh, buf, 1);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_read(devh, caps, JAYLINK_DEV_CAPS_SIZE);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	return JAYLINK_OK;
+}
+
+/**
+ * Retrieve the extended capabilities of a device.
+ *
+ * The extended capabilities are stored in a 256-bit bit array consisting of
+ * #JAYLINK_DEV_EXT_CAPS_SIZE bytes. See jaylink_get_caps() for a further
+ * description of how the capabilities are represented in this bit array. For a
+ * description of the capabilities and their bit positions, see
+ * #jaylink_device_capability.
+ *
+ * @note This function must only be used if the device has the
+ *       #JAYLINK_DEV_CAP_GET_EXT_CAPS capability.
+ *
+ * @param[in,out] devh Device handle.
+ * @param[out] caps Buffer to store capabilities on success. Its content is
+ *                  undefined on failure. The buffer must be large enough to
+ *                  contain at least #JAYLINK_DEV_EXT_CAPS_SIZE bytes.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_TIMEOUT A timeout occurred.
+ * @retval JAYLINK_ERR_IO Input/output error.
+ * @retval JAYLINK_ERR Other error conditions.
+ *
+ * @see jaylink_get_caps()
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_get_extended_caps(struct jaylink_device_handle *devh,
+		uint8_t *caps)
+{
+	int ret;
+	struct jaylink_context *ctx;
+	uint8_t buf[1];
+
+	if (!devh || !caps)
+		return JAYLINK_ERR_ARG;
+
+	ctx = devh->dev->ctx;
+	ret = transport_start_write_read(devh, 1, JAYLINK_DEV_EXT_CAPS_SIZE,
+		true);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_start_write_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	buf[0] = CMD_GET_EXT_CAPS;
+
+	ret = transport_write(devh, buf, 1);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_read(devh, caps, JAYLINK_DEV_EXT_CAPS_SIZE);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	return JAYLINK_OK;
+}
+
+/**
+ * Retrieve the size of free memory of a device.
+ *
+ * @note This function must only be used if the device has the
+ *       #JAYLINK_DEV_CAP_GET_FREE_MEMORY capability.
+ *
+ * @param[in,out] devh Device handle.
+ * @param[out] size Size of free memory in bytes on success, and undefined on
+ *                  failure.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_TIMEOUT A timeout occurred.
+ * @retval JAYLINK_ERR_IO Input/output error.
+ * @retval JAYLINK_ERR Other error conditions.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_get_free_memory(struct jaylink_device_handle *devh,
+		uint32_t *size)
+{
+	int ret;
+	struct jaylink_context *ctx;
+	uint8_t buf[4];
+
+	if (!devh || !size)
+		return JAYLINK_ERR_ARG;
+
+	ctx = devh->dev->ctx;
+	ret = transport_start_write_read(devh, 1, 4, true);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_start_write_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	buf[0] = CMD_GET_FREE_MEMORY;
+
+	ret = transport_write(devh, buf, 1);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_read(devh, buf, 4);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	*size = buffer_get_u32(buf, 0);
+
+	return JAYLINK_OK;
+}
+
+/**
+ * Read the raw configuration data of a device.
+ *
+ * @note This function must only be used if the device has the
+ *       #JAYLINK_DEV_CAP_READ_CONFIG capability.
+ *
+ * @param[in,out] devh Device handle.
+ * @param[out] config Buffer to store configuration data on success. Its
+ *                    content is undefined on failure. The buffer must be large
+ *                    enough to contain at least
+ *                    #JAYLINK_DEV_CONFIG_SIZE bytes.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_TIMEOUT A timeout occurred.
+ * @retval JAYLINK_ERR_IO Input/output error.
+ * @retval JAYLINK_ERR Other error conditions.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_read_raw_config(struct jaylink_device_handle *devh,
+		uint8_t *config)
+{
+	int ret;
+	struct jaylink_context *ctx;
+	uint8_t buf[1];
+
+	if (!devh || !config)
+		return JAYLINK_ERR_ARG;
+
+	ctx = devh->dev->ctx;
+	ret = transport_start_write_read(devh, 1, JAYLINK_DEV_CONFIG_SIZE,
+		true);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_start_write_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	buf[0] = CMD_READ_CONFIG;
+
+	ret = transport_write(devh, buf, 1);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_read(devh, config, JAYLINK_DEV_CONFIG_SIZE);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	return JAYLINK_OK;
+}
+
+/**
+ * Write the raw configuration data of a device.
+ *
+ * @note This function must only be used if the device has the
+ *       #JAYLINK_DEV_CAP_WRITE_CONFIG capability.
+ *
+ * @param[in,out] devh Device handle.
+ * @param[in] config Buffer to write configuration data from. The size of the
+ *                   configuration data is expected to be
+ *                   #JAYLINK_DEV_CONFIG_SIZE bytes.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_TIMEOUT A timeout occurred.
+ * @retval JAYLINK_ERR_IO Input/output error.
+ * @retval JAYLINK_ERR Other error conditions.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_write_raw_config(struct jaylink_device_handle *devh,
+		const uint8_t *config)
+{
+	int ret;
+	struct jaylink_context *ctx;
+	uint8_t buf[1];
+
+	if (!devh || !config)
+		return JAYLINK_ERR_ARG;
+
+	ctx = devh->dev->ctx;
+	ret = transport_start_write(devh, 1 + JAYLINK_DEV_CONFIG_SIZE, true);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_start_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	buf[0] = CMD_WRITE_CONFIG;
+
+	ret = transport_write(devh, buf, 1);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_write(devh, config, JAYLINK_DEV_CONFIG_SIZE);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	return JAYLINK_OK;
+}
+
+static void parse_conn_table(struct jaylink_connection *conns,
+		const uint8_t *buffer, uint16_t num, uint16_t entry_size)
+{
+	unsigned int i;
+	size_t offset;
+	struct in_addr in;
+
+	offset = 0;
+
+	for (i = 0; i < num; i++) {
+		conns[i].pid = buffer_get_u32(buffer, offset);
+
+		in.s_addr = buffer_get_u32(buffer, offset + 4);
+		/*
+		 * Use inet_ntoa() instead of inet_ntop() because the latter
+		 * requires at least Windows Vista.
+		 */
+		strcpy(conns[i].hid, inet_ntoa(in));
+
+		conns[i].iid = buffer[offset + 8];
+		conns[i].cid = buffer[offset + 9];
+		conns[i].handle = buffer_get_u16(buffer, offset + 10);
+		conns[i].timestamp = buffer_get_u32(buffer, offset + 12);
+		offset = offset + entry_size;
+	}
+}
+
+static bool _inet_pton(const char *str, struct in_addr *in)
+{
+#ifdef _WIN32
+	int ret;
+	struct sockaddr_in sock_in;
+	int length;
+
+	length = sizeof(sock_in);
+
+	/*
+	 * Use WSAStringToAddress() instead of inet_pton() because the latter
+	 * requires at least Windows Vista.
+	 */
+	ret = WSAStringToAddress((LPTSTR)str, AF_INET, NULL,
+		(LPSOCKADDR)&sock_in, &length);
+
+	if (ret != 0)
+		return false;
+
+	*in = sock_in.sin_addr;
+#else
+	if (inet_pton(AF_INET, str, in) != 1)
+		return false;
+#endif
+
+	return true;
+}
+
+/**
+ * Register a connection on a device.
+ *
+ * A connection can be registered by using 0 as handle. Additional information
+ * about the connection can be attached whereby the timestamp is a read-only
+ * value and therefore ignored for registration. On success, a new handle
+ * greater than 0 is obtained from the device.
+ *
+ * However, if an obtained handle does not appear in the list of device
+ * connections, the connection was not registered because the maximum number of
+ * connections on the device is reached.
+ *
+ * @note This function must only be used if the device has the
+ *       #JAYLINK_DEV_CAP_REGISTER capability.
+ *
+ * Example code:
+ * @code{.c}
+ * static bool register_connection(struct jaylink_device_handle *devh,
+ *                 struct jaylink_connection *conn)
+ * {
+ *         int ret;
+ *         struct jaylink_connection conns[JAYLINK_MAX_CONNECTIONS];
+ *         bool found_handle;
+ *         size_t count;
+ *         size_t i;
+ *
+ *         conn->handle = 0;
+ *         conn->pid = 0;
+ *         strcpy(conn->hid, "0.0.0.0");
+ *         conn->iid = 0;
+ *         conn->cid = 0;
+ *
+ *         ret = jaylink_register(devh, conn, conns, &count);
+ *
+ *         if (ret != JAYLINK_OK) {
+ *                 printf("jaylink_register() failed: %s.\n",
+ *                         jaylink_strerror(ret));
+ *                 return false;
+ *         }
+ *
+ *         found_handle = false;
+ *
+ *         for (i = 0; i < count; i++) {
+ *                 if (conns[i].handle == conn->handle) {
+ *                         found_handle = true;
+ *                         break;
+ *                 }
+ *         }
+ *
+ *         if (!found_handle) {
+ *                 printf("Maximum number of connections reached.\n");
+ *                 return false;
+ *         }
+ *
+ *         printf("Connection successfully registered.\n");
+ *
+ *         return true;
+ * }
+ * @endcode
+ *
+ * @param[in,out] devh Device handle.
+ * @param[in,out] connection Connection to register on the device.
+ * @param[out] connections Array to store device connections on success.
+ *                         Its content is undefined on failure. The array must
+ *                         be large enough to contain at least
+ *                         #JAYLINK_MAX_CONNECTIONS elements.
+ * @param[out] count Number of device connections on success, and undefined on
+ *                   failure.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_TIMEOUT A timeout occurred.
+ * @retval JAYLINK_ERR_PROTO Protocol violation.
+ * @retval JAYLINK_ERR_IO Input/output error.
+ * @retval JAYLINK_ERR Other error conditions.
+ *
+ * @see jaylink_unregister()
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_register(struct jaylink_device_handle *devh,
+		struct jaylink_connection *connection,
+		struct jaylink_connection *connections, size_t *count)
+{
+	int ret;
+	struct jaylink_context *ctx;
+	uint8_t buf[REG_MAX_SIZE];
+	uint16_t handle;
+	uint16_t num;
+	uint16_t entry_size;
+	uint32_t size;
+	uint32_t table_size;
+	uint16_t info_size;
+	struct in_addr in;
+
+	if (!devh || !connection || !connections || !count)
+		return JAYLINK_ERR_ARG;
+
+	ctx = devh->dev->ctx;
+
+	buf[0] = CMD_REGISTER;
+	buf[1] = REG_CMD_REGISTER;
+	buffer_set_u32(buf, connection->pid, 2);
+
+	if (!_inet_pton(connection->hid, &in))
+		return JAYLINK_ERR_ARG;
+
+	buffer_set_u32(buf, in.s_addr, 6);
+
+	buf[10] = connection->iid;
+	buf[11] = connection->cid;
+	buffer_set_u16(buf, connection->handle, 12);
+
+	ret = transport_start_write_read(devh, 14, REG_MIN_SIZE, true);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_start_write_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_write(devh, buf, 14);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_read(devh, buf, REG_MIN_SIZE);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	handle = buffer_get_u16(buf, 0);
+	num = buffer_get_u16(buf, 2);
+	entry_size = buffer_get_u16(buf, 4);
+	info_size = buffer_get_u16(buf, 6);
+
+	if (num > JAYLINK_MAX_CONNECTIONS) {
+		log_err(ctx, "Maximum number of device connections exceeded: "
+			"%u.", num);
+		return JAYLINK_ERR_PROTO;
+	}
+
+	if (entry_size != REG_CONN_INFO_SIZE) {
+		log_err(ctx, "Invalid connection entry size: %u bytes.",
+			entry_size);
+		return JAYLINK_ERR_PROTO;
+	}
+
+	table_size = num * entry_size;
+	size = REG_HEADER_SIZE + table_size + info_size;
+
+	if (size > REG_MAX_SIZE) {
+		log_err(ctx, "Maximum registration information size exceeded: "
+			"%u bytes.", size);
+		return JAYLINK_ERR_PROTO;
+	}
+
+	if (size > REG_MIN_SIZE) {
+		ret = transport_start_read(devh, size - REG_MIN_SIZE);
+
+		if (ret != JAYLINK_OK) {
+			log_err(ctx, "transport_start_read() failed: %s.",
+				jaylink_strerror(ret));
+			return JAYLINK_ERR;
+		}
+
+		ret = transport_read(devh, buf + REG_MIN_SIZE,
+			size - REG_MIN_SIZE);
+
+		if (ret != JAYLINK_OK) {
+			log_err(ctx, "transport_read() failed: %s.",
+				jaylink_strerror(ret));
+			return JAYLINK_ERR;
+		}
+	}
+
+	if (!handle) {
+		log_err(ctx, "Obtained invalid connection handle.");
+		return JAYLINK_ERR_PROTO;
+	}
+
+	connection->handle = handle;
+	parse_conn_table(connections, buf + REG_HEADER_SIZE, num, entry_size);
+
+	*count = num;
+
+	return JAYLINK_OK;
+}
+
+/**
+ * Unregister a connection from a device.
+ *
+ * @note This function must only be used if the device has the
+ *       #JAYLINK_DEV_CAP_REGISTER capability.
+ *
+ * @param[in,out] devh Device handle.
+ * @param[in,out] connection Connection to unregister from the device.
+ * @param[out] connections Array to store device connections on success.
+ *                         Its content is undefined on failure. The array must
+ *                         be large enough to contain at least
+ *                         #JAYLINK_MAX_CONNECTIONS elements.
+ * @param[out] count Number of device connections on success, and undefined on
+ *                   failure.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_TIMEOUT A timeout occurred.
+ * @retval JAYLINK_ERR_PROTO Protocol violation.
+ * @retval JAYLINK_ERR_IO Input/output error.
+ * @retval JAYLINK_ERR Other error conditions.
+ *
+ * @see jaylink_register()
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_unregister(struct jaylink_device_handle *devh,
+		const struct jaylink_connection *connection,
+		struct jaylink_connection *connections, size_t *count)
+{
+	int ret;
+	struct jaylink_context *ctx;
+	uint8_t buf[REG_MAX_SIZE];
+	uint16_t num;
+	uint16_t entry_size;
+	uint32_t size;
+	uint32_t table_size;
+	uint16_t info_size;
+	struct in_addr in;
+
+	if (!devh || !connection || !connections || !count)
+		return JAYLINK_ERR_ARG;
+
+	ctx = devh->dev->ctx;
+
+	buf[0] = CMD_REGISTER;
+	buf[1] = REG_CMD_UNREGISTER;
+	buffer_set_u32(buf, connection->pid, 2);
+
+	if (!_inet_pton(connection->hid, &in))
+		return JAYLINK_ERR_ARG;
+
+	buffer_set_u32(buf, in.s_addr, 6);
+
+	buf[10] = connection->iid;
+	buf[11] = connection->cid;
+	buffer_set_u16(buf, connection->handle, 12);
+
+	ret = transport_start_write_read(devh, 14, REG_MIN_SIZE, true);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_start_write_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_write(devh, buf, 14);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_read(devh, buf, REG_MIN_SIZE);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	num = buffer_get_u16(buf, 2);
+	entry_size = buffer_get_u16(buf, 4);
+	info_size = buffer_get_u16(buf, 6);
+
+	if (num > JAYLINK_MAX_CONNECTIONS) {
+		log_err(ctx, "Maximum number of device connections exceeded: "
+			"%u.", num);
+		return JAYLINK_ERR_PROTO;
+	}
+
+	if (entry_size != REG_CONN_INFO_SIZE) {
+		log_err(ctx, "Invalid connection entry size: %u bytes.",
+			entry_size);
+		return JAYLINK_ERR_PROTO;
+	}
+
+	table_size = num * entry_size;
+	size = REG_HEADER_SIZE + table_size + info_size;
+
+	if (size > REG_MAX_SIZE) {
+		log_err(ctx, "Maximum registration information size exceeded: "
+			"%u bytes.", size);
+		return JAYLINK_ERR_PROTO;
+	}
+
+	if (size > REG_MIN_SIZE) {
+		ret = transport_start_read(devh, size - REG_MIN_SIZE);
+
+		if (ret != JAYLINK_OK) {
+			log_err(ctx, "transport_start_read() failed: %s.",
+				jaylink_strerror(ret));
+			return JAYLINK_ERR;
+		}
+
+		ret = transport_read(devh, buf + REG_MIN_SIZE,
+			size - REG_MIN_SIZE);
+
+		if (ret != JAYLINK_OK) {
+			log_err(ctx, "transport_read() failed: %s.",
+				jaylink_strerror(ret));
+			return JAYLINK_ERR;
+		}
+	}
+
+	parse_conn_table(connections, buf + REG_HEADER_SIZE, num, entry_size);
+
+	*count = num;
+
+	return JAYLINK_OK;
+}
diff --git a/src/jtag/drivers/libjaylink/libjaylink/discovery.c b/src/jtag/drivers/libjaylink/libjaylink/discovery.c
new file mode 100644
index 0000000..1ac96e7
--- /dev/null
+++ b/src/jtag/drivers/libjaylink/libjaylink/discovery.c
@@ -0,0 +1,106 @@
+/*
+ * This file is part of the libjaylink project.
+ *
+ * Copyright (C) 2014-2016 Marc Schink <jaylink-dev@marcschink.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdlib.h>
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+#include "libjaylink.h"
+#include "libjaylink-internal.h"
+
+/**
+ * @file
+ *
+ * Device discovery.
+ */
+
+static void clear_discovery_list(struct jaylink_context *ctx)
+{
+	struct list *item;
+	struct list *tmp;
+	struct jaylink_device *dev;
+
+	item = ctx->discovered_devs;
+
+	while (item) {
+		dev = (struct jaylink_device *)item->data;
+		jaylink_unref_device(dev);
+
+		tmp = item;
+		item = item->next;
+		free(tmp);
+	}
+
+	ctx->discovered_devs = NULL;
+}
+
+/**
+ * Scan for devices.
+ *
+ * @param[in,out] ctx libjaylink context.
+ * @param[in] ifaces Host interfaces to scan for devices. Use bitwise OR to
+ *                   specify multiple interfaces, or 0 to use all available
+ *                   interfaces. See #jaylink_host_interface for a description
+ *                   of the interfaces.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_IO Input/output error.
+ * @retval JAYLINK_ERR Other error conditions.
+ *
+ * @see jaylink_get_devices()
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_discovery_scan(struct jaylink_context *ctx,
+		uint32_t ifaces)
+{
+	int ret;
+
+	if (!ctx)
+		return JAYLINK_ERR_ARG;
+
+	if (!ifaces)
+		ifaces = JAYLINK_HIF_USB | JAYLINK_HIF_TCP;
+
+	clear_discovery_list(ctx);
+
+#ifdef HAVE_LIBUSB
+	if (ifaces & JAYLINK_HIF_USB) {
+		ret = discovery_usb_scan(ctx);
+
+		if (ret != JAYLINK_OK) {
+			log_err(ctx, "USB device discovery failed.");
+			return ret;
+		}
+	}
+#endif
+
+	if (ifaces & JAYLINK_HIF_TCP) {
+		ret = discovery_tcp_scan(ctx);
+
+		if (ret != JAYLINK_OK) {
+			log_err(ctx, "TCP/IP device discovery failed.");
+			return ret;
+		}
+	}
+
+	return JAYLINK_OK;
+}
diff --git a/src/jtag/drivers/libjaylink/libjaylink/discovery_tcp.c b/src/jtag/drivers/libjaylink/libjaylink/discovery_tcp.c
new file mode 100644
index 0000000..002fa67
--- /dev/null
+++ b/src/jtag/drivers/libjaylink/libjaylink/discovery_tcp.c
@@ -0,0 +1,349 @@
+/*
+ * This file is part of the libjaylink project.
+ *
+ * Copyright (C) 2015-2017 Marc Schink <jaylink-dev@marcschink.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <ctype.h>
+#ifdef _WIN32
+#include <winsock2.h>
+#else
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#endif
+
+#include "libjaylink.h"
+#include "libjaylink-internal.h"
+
+/**
+ * @file
+ *
+ * Device discovery (TCP/IP).
+ */
+
+/** @cond PRIVATE */
+/** Size of the advertisement message in bytes. */
+#define ADV_MESSAGE_SIZE	128
+
+/** Device discovery port number. */
+#define DISC_PORT		19020
+
+/** Size of the discovery message in bytes. */
+#define DISC_MESSAGE_SIZE	64
+
+/** Discovery timeout in milliseconds. */
+#define DISC_TIMEOUT		20
+/** @endcond */
+
+static bool compare_devices(const void *a, const void *b)
+{
+	const struct jaylink_device *dev;
+	const struct jaylink_device *new_dev;
+
+	dev = a;
+	new_dev = b;
+
+	if (dev->iface != JAYLINK_HIF_TCP)
+		return false;
+
+	if (memcmp(dev->ipv4_address, new_dev->ipv4_address,
+			sizeof(dev->ipv4_address)) != 0)
+		return false;
+
+	if (dev->serial_number != new_dev->serial_number)
+		return false;
+
+	if (memcmp(dev->mac_address, new_dev->mac_address,
+			sizeof(dev->mac_address)) != 0)
+		return false;
+
+	if (strcmp(dev->product_name, new_dev->product_name) != 0)
+		return false;
+
+	if (strcmp(dev->nickname, new_dev->nickname) != 0)
+		return false;
+
+	if (dev->hw_version.type != new_dev->hw_version.type)
+		return false;
+
+	if (dev->hw_version.major != new_dev->hw_version.major)
+		return false;
+
+	if (dev->hw_version.minor != new_dev->hw_version.minor)
+		return false;
+
+	if (dev->hw_version.revision != new_dev->hw_version.revision)
+		return false;
+
+	return true;
+}
+
+static struct jaylink_device *find_device(struct list *list,
+		const struct jaylink_device *dev)
+{
+	struct list *item;
+
+	item = list_find_custom(list, &compare_devices, dev);
+
+	if (item)
+		return item->data;
+
+	return NULL;
+}
+
+static bool parse_adv_message(struct jaylink_device *dev,
+		const uint8_t *buffer)
+{
+	struct in_addr in;
+	uint32_t tmp;
+
+	if (memcmp(buffer, "Found", 5) != 0)
+		return false;
+
+	/*
+	 * Use inet_ntoa() instead of inet_ntop() because the latter requires
+	 * at least Windows Vista.
+	 */
+	memcpy(&in, buffer + 16, 4);
+	memcpy(dev->ipv4_address, inet_ntoa(in), sizeof(dev->ipv4_address));
+
+	memcpy(dev->mac_address, buffer + 32, sizeof(dev->mac_address));
+	dev->has_mac_address = true;
+
+	dev->serial_number = buffer_get_u32(buffer, 48);
+	dev->valid_serial_number = true;
+
+	tmp = buffer_get_u32(buffer, 52);
+	dev->hw_version.type = (tmp / 1000000) % 100;
+	dev->hw_version.major = (tmp / 10000) % 100;
+	dev->hw_version.minor = (tmp / 100) % 100;
+	dev->hw_version.revision = tmp % 100;
+	dev->has_hw_version = true;
+
+	memcpy(dev->product_name, buffer + 64, sizeof(dev->product_name));
+	dev->product_name[JAYLINK_PRODUCT_NAME_MAX_LENGTH - 1] = '\0';
+	dev->has_product_name = isprint((unsigned char)dev->product_name[0]);
+
+	memcpy(dev->nickname, buffer + 96, sizeof(dev->nickname));
+	dev->nickname[JAYLINK_NICKNAME_MAX_LENGTH - 1] = '\0';
+	dev->has_nickname = isprint((unsigned char)dev->nickname[0]);
+
+	return true;
+}
+
+static struct jaylink_device *probe_device(struct jaylink_context *ctx,
+		struct sockaddr_in *addr, const uint8_t *buffer)
+{
+	struct jaylink_device tmp;
+	struct jaylink_device *dev;
+
+	/*
+	 * Use inet_ntoa() instead of inet_ntop() because the latter requires
+	 * at least Windows Vista.
+	 */
+	log_dbg(ctx, "Received advertisement message (IPv4 address = %s).",
+		inet_ntoa(addr->sin_addr));
+
+	if (!parse_adv_message(&tmp, buffer)) {
+		log_dbg(ctx, "Received invalid advertisement message.");
+		return NULL;
+	}
+
+	log_dbg(ctx, "Found device (IPv4 address = %s).", tmp.ipv4_address);
+	log_dbg(ctx, "Device: MAC address = %02x:%02x:%02x:%02x:%02x:%02x.",
+		tmp.mac_address[0], tmp.mac_address[1], tmp.mac_address[2],
+		tmp.mac_address[3], tmp.mac_address[4], tmp.mac_address[5]);
+	log_dbg(ctx, "Device: Serial number = %u.", tmp.serial_number);
+
+	if (tmp.has_product_name)
+		log_dbg(ctx, "Device: Product = %s.", tmp.product_name);
+
+	if (tmp.has_nickname)
+		log_dbg(ctx, "Device: Nickname = %s.", tmp.nickname);
+
+	dev = find_device(ctx->discovered_devs, &tmp);
+
+	if (dev) {
+		log_dbg(ctx, "Ignoring already discovered device.");
+		return NULL;
+	}
+
+	dev = find_device(ctx->devs, &tmp);
+
+	if (dev) {
+		log_dbg(ctx, "Using existing device instance.");
+		return jaylink_ref_device(dev);
+	}
+
+	log_dbg(ctx, "Allocating new device instance.");
+
+	dev = device_allocate(ctx);
+
+	if (!dev) {
+		log_warn(ctx, "Device instance malloc failed.");
+		return NULL;
+	}
+
+	dev->iface = JAYLINK_HIF_TCP;
+
+	dev->serial_number = tmp.serial_number;
+	dev->valid_serial_number = tmp.valid_serial_number;
+
+	memcpy(dev->ipv4_address, tmp.ipv4_address, sizeof(dev->ipv4_address));
+
+	memcpy(dev->mac_address, tmp.mac_address, sizeof(dev->mac_address));
+	dev->has_mac_address = tmp.has_mac_address;
+
+	memcpy(dev->product_name, tmp.product_name, sizeof(dev->product_name));
+	dev->has_product_name = tmp.has_product_name;
+
+	memcpy(dev->nickname, tmp.nickname, sizeof(dev->nickname));
+	dev->has_nickname = tmp.has_nickname;
+
+	dev->hw_version = tmp.hw_version;
+	dev->has_hw_version = tmp.has_hw_version;
+
+	return dev;
+}
+
+/** @private */
+JAYLINK_PRIV int discovery_tcp_scan(struct jaylink_context *ctx)
+{
+	int ret;
+	int sock;
+	int opt_value;
+	fd_set rfds;
+	struct sockaddr_in addr;
+	size_t addr_length;
+	struct timeval timeout;
+	uint8_t buf[ADV_MESSAGE_SIZE];
+	struct jaylink_device *dev;
+	size_t length;
+	size_t num_devs;
+
+	sock = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
+
+	if (sock < 0) {
+		log_err(ctx, "Failed to create discovery socket.");
+		return JAYLINK_ERR;
+	}
+
+	opt_value = true;
+
+	if (!socket_set_option(sock, SOL_SOCKET, SO_BROADCAST, &opt_value,
+			sizeof(opt_value))) {
+		log_err(ctx, "Failed to enable broadcast option for discovery "
+			"socket.");
+		socket_close(sock);
+		return JAYLINK_ERR;
+	}
+
+	memset(&addr, 0, sizeof(struct sockaddr_in));
+	addr.sin_family = AF_INET;
+	addr.sin_port = htons(DISC_PORT);
+	addr.sin_addr.s_addr = INADDR_ANY;
+
+	if (!socket_bind(sock, (struct sockaddr *)&addr,
+			sizeof(struct sockaddr_in))) {
+		log_err(ctx, "Failed to bind discovery socket.");
+		socket_close(sock);
+		return JAYLINK_ERR;
+	}
+
+	addr.sin_family = AF_INET;
+	addr.sin_port = htons(DISC_PORT);
+	addr.sin_addr.s_addr = INADDR_BROADCAST;
+
+	memset(buf, 0, DISC_MESSAGE_SIZE);
+	memcpy(buf, "Discover", 8);
+
+	log_dbg(ctx, "Sending discovery message.");
+
+	length = DISC_MESSAGE_SIZE;
+
+	if (!socket_sendto(sock, (char *)buf, &length, 0,
+			(const struct sockaddr *)&addr, sizeof(addr))) {
+		log_err(ctx, "Failed to send discovery message.");
+		socket_close(sock);
+		return JAYLINK_ERR_IO;
+	}
+
+	if (length < DISC_MESSAGE_SIZE) {
+		log_err(ctx, "Only sent %zu bytes of discovery message.",
+			length);
+		socket_close(sock);
+		return JAYLINK_ERR_IO;
+	}
+
+	timeout.tv_sec = DISC_TIMEOUT / 1000;
+	timeout.tv_usec = (DISC_TIMEOUT % 1000) * 1000;
+
+	num_devs = 0;
+
+	while (true) {
+		FD_ZERO(&rfds);
+		FD_SET(sock, &rfds);
+
+		ret = select(sock + 1, &rfds, NULL, NULL, &timeout);
+
+		if (ret <= 0)
+			break;
+
+		if (!FD_ISSET(sock, &rfds))
+			continue;
+
+		length = ADV_MESSAGE_SIZE;
+		addr_length = sizeof(struct sockaddr_in);
+
+		if (!socket_recvfrom(sock, buf, &length, 0,
+				(struct sockaddr *)&addr, &addr_length)) {
+			log_warn(ctx, "Failed to receive advertisement "
+				"message.");
+			continue;
+		}
+
+		/*
+		 * Filter out messages with an invalid size. This includes the
+		 * broadcast message we sent before.
+		 */
+		if (length != ADV_MESSAGE_SIZE)
+			continue;
+
+		dev = probe_device(ctx, &addr, buf);
+
+		if (dev) {
+			ctx->discovered_devs = list_prepend(
+				ctx->discovered_devs, dev);
+			num_devs++;
+		}
+	}
+
+	socket_close(sock);
+
+	if (ret < 0) {
+		log_err(ctx, "select() failed.");
+		return JAYLINK_ERR;
+	}
+
+	log_dbg(ctx, "Found %zu TCP/IP device(s).", num_devs);
+
+	return JAYLINK_OK;
+}
diff --git a/src/jtag/drivers/libjaylink/libjaylink/discovery_usb.c b/src/jtag/drivers/libjaylink/libjaylink/discovery_usb.c
new file mode 100644
index 0000000..48d5322
--- /dev/null
+++ b/src/jtag/drivers/libjaylink/libjaylink/discovery_usb.c
@@ -0,0 +1,280 @@
+/*
+ * This file is part of the libjaylink project.
+ *
+ * Copyright (C) 2014-2016 Marc Schink <jaylink-dev@marcschink.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdlib.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <string.h>
+#include <sys/types.h>
+
+#include "libjaylink.h"
+#include "libjaylink-internal.h"
+
+/*
+ * libusb.h includes windows.h and therefore must be included after anything
+ * that includes winsock2.h.
+ */
+#include <libusb.h>
+
+/**
+ * @file
+ *
+ * Device discovery (USB).
+ */
+
+/** @cond PRIVATE */
+/** USB Vendor ID (VID) of SEGGER products. */
+#define USB_VENDOR_ID			0x1366
+
+/* USB Product IDs (PID) and their corresponding USB addresses. */
+static const uint16_t pids[][2] = {
+	{0x0101, 0},
+	{0x0102, 1},
+	{0x0103, 2},
+	{0x0104, 3},
+	{0x0105, 0},
+	{0x0107, 0},
+	{0x0108, 0},
+	{0x1010, 0},
+	{0x1011, 0},
+	{0x1012, 0},
+	{0x1013, 0},
+	{0x1014, 0},
+	{0x1015, 0},
+	{0x1016, 0},
+	{0x1017, 0},
+	{0x1018, 0}
+};
+
+/** Maximum length of the USB string descriptor for the serial number. */
+#define USB_SERIAL_NUMBER_LENGTH	12
+
+/**
+ * Maximum number of digits in a serial number
+ *
+ * The serial number of a device consists of at most 9 digits but user defined
+ * serial numbers are allowed with up to 10 digits.
+ */
+#define MAX_SERIAL_NUMBER_DIGITS	10
+/** @endcond */
+
+static bool parse_serial_number(const char *str, uint32_t *serial_number)
+{
+	size_t length;
+
+	length = strlen(str);
+
+	/*
+	 * Skip the first digits which are not part of a valid serial number.
+	 * This is necessary because some devices erroneously use random digits
+	 * instead of zeros for padding.
+	 */
+	if (length > MAX_SERIAL_NUMBER_DIGITS)
+		str = str + (length - MAX_SERIAL_NUMBER_DIGITS);
+
+	if (jaylink_parse_serial_number(str, serial_number) != JAYLINK_OK)
+		return false;
+
+	return true;
+}
+
+static bool compare_devices(const void *a, const void *b)
+{
+	const struct jaylink_device *dev;
+	const struct libusb_device *usb_dev;
+
+	dev = a;
+	usb_dev = b;
+
+	if (dev->iface != JAYLINK_HIF_USB)
+		return false;
+
+	if (dev->usb_dev == usb_dev)
+		return true;
+
+	return false;
+}
+
+static struct jaylink_device *find_device(const struct jaylink_context *ctx,
+		const struct libusb_device *usb_dev)
+{
+	struct list *item;
+
+	item = list_find_custom(ctx->devs, &compare_devices, usb_dev);
+
+	if (item)
+		return item->data;
+
+	return NULL;
+}
+
+static struct jaylink_device *probe_device(struct jaylink_context *ctx,
+		struct libusb_device *usb_dev)
+{
+	int ret;
+	struct libusb_device_descriptor desc;
+	struct libusb_device_handle *usb_devh;
+	struct jaylink_device *dev;
+	char buf[USB_SERIAL_NUMBER_LENGTH + 1];
+	uint8_t usb_address;
+	uint32_t serial_number;
+	bool valid_serial_number;
+	bool found_device;
+	size_t i;
+
+	ret = libusb_get_device_descriptor(usb_dev, &desc);
+
+	if (ret != LIBUSB_SUCCESS) {
+		log_warn(ctx, "Failed to get device descriptor: %s.",
+			libusb_error_name(ret));
+		return NULL;
+	}
+
+	if (desc.idVendor != USB_VENDOR_ID)
+		return NULL;
+
+	found_device = false;
+
+	for (i = 0; i < sizeof(pids) / sizeof(pids[0]); i++) {
+		if (pids[i][0] == desc.idProduct) {
+			found_device = true;
+			usb_address = pids[i][1];
+			break;
+		}
+	}
+
+	if (!found_device)
+		return NULL;
+
+	log_dbg(ctx, "Found device (VID:PID = %04x:%04x, bus:address = "
+		"%03u:%03u).", desc.idVendor, desc.idProduct,
+		libusb_get_bus_number(usb_dev),
+		libusb_get_device_address(usb_dev));
+
+	/*
+	 * Search for an already allocated device instance for this device and
+	 * if found return a reference to it.
+	 */
+	dev = find_device(ctx, usb_dev);
+
+	if (dev) {
+		log_dbg(ctx, "Device: USB address = %u.", dev->usb_address);
+
+		if (dev->valid_serial_number)
+			log_dbg(ctx, "Device: Serial number = %u.",
+				dev->serial_number);
+		else
+			log_dbg(ctx, "Device: Serial number = N/A.");
+
+		log_dbg(ctx, "Using existing device instance.");
+		return jaylink_ref_device(dev);
+	}
+
+	/* Open the device to be able to retrieve its serial number. */
+	ret = libusb_open(usb_dev, &usb_devh);
+
+	if (ret != LIBUSB_SUCCESS) {
+		log_warn(ctx, "Failed to open device: %s.",
+			libusb_error_name(ret));
+		return NULL;
+	}
+
+	serial_number = 0;
+	valid_serial_number = true;
+
+	ret = libusb_get_string_descriptor_ascii(usb_devh, desc.iSerialNumber,
+		(unsigned char *)buf, USB_SERIAL_NUMBER_LENGTH + 1);
+
+	libusb_close(usb_devh);
+
+	if (ret < 0) {
+		log_warn(ctx, "Failed to retrieve serial number: %s.",
+			libusb_error_name(ret));
+		valid_serial_number = false;
+	}
+
+	if (valid_serial_number) {
+		if (!parse_serial_number(buf, &serial_number)) {
+			log_warn(ctx, "Failed to parse serial number.");
+			return NULL;
+		}
+	}
+
+	log_dbg(ctx, "Device: USB address = %u.", usb_address);
+
+	if (valid_serial_number)
+		log_dbg(ctx, "Device: Serial number = %u.", serial_number);
+	else
+		log_dbg(ctx, "Device: Serial number = N/A.");
+
+	log_dbg(ctx, "Allocating new device instance.");
+
+	dev = device_allocate(ctx);
+
+	if (!dev) {
+		log_warn(ctx, "Device instance malloc failed.");
+		return NULL;
+	}
+
+	dev->iface = JAYLINK_HIF_USB;
+	dev->usb_dev = libusb_ref_device(usb_dev);
+	dev->usb_address = usb_address;
+	dev->serial_number = serial_number;
+	dev->valid_serial_number = valid_serial_number;
+
+	return dev;
+}
+
+JAYLINK_PRIV int discovery_usb_scan(struct jaylink_context *ctx)
+{
+	ssize_t ret;
+	struct libusb_device **devs;
+	struct jaylink_device *dev;
+	size_t num;
+	size_t i;
+
+	ret = libusb_get_device_list(ctx->usb_ctx, &devs);
+
+	if (ret == LIBUSB_ERROR_IO) {
+		log_err(ctx, "Failed to retrieve device list: input/output "
+			"error.");
+		return JAYLINK_ERR_IO;
+	} else if (ret < 0) {
+		log_err(ctx, "Failed to retrieve device list: %s.",
+			libusb_error_name(ret));
+		return JAYLINK_ERR;
+	}
+
+	num = 0;
+
+	for (i = 0; devs[i]; i++) {
+		dev = probe_device(ctx, devs[i]);
+
+		if (!dev)
+			continue;
+
+		ctx->discovered_devs = list_prepend(ctx->discovered_devs, dev);
+		num++;
+	}
+
+	libusb_free_device_list(devs, true);
+	log_dbg(ctx, "Found %zu USB device(s).", num);
+
+	return JAYLINK_OK;
+}
diff --git a/src/jtag/drivers/libjaylink/libjaylink/emucom.c b/src/jtag/drivers/libjaylink/libjaylink/emucom.c
new file mode 100644
index 0000000..035cb99
--- /dev/null
+++ b/src/jtag/drivers/libjaylink/libjaylink/emucom.c
@@ -0,0 +1,287 @@
+/*
+ * This file is part of the libjaylink project.
+ *
+ * Copyright (C) 2015-2016 Marc Schink <jaylink-dev@marcschink.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdint.h>
+#include <stdbool.h>
+
+#include "libjaylink.h"
+#include "libjaylink-internal.h"
+
+/**
+ * @file
+ *
+ * Emulator communication (EMUCOM).
+ */
+
+/** @cond PRIVATE */
+#define CMD_EMUCOM			0xee
+
+#define EMUCOM_CMD_READ			0x00
+#define EMUCOM_CMD_WRITE		0x01
+
+/** Bitmask for the error indication bit of an EMUCOM status code. */
+#define EMUCOM_ERR			0x80000000
+
+/** Error code indicating that the channel is not supported by the device. */
+#define EMUCOM_ERR_NOT_SUPPORTED	0x80000001
+
+/**
+ * Error code indicating that the channel is not available for the requested
+ * number of bytes to be read.
+ *
+ * The number of bytes available on this channel is encoded in the lower
+ * 24 bits of the EMUCOM status code.
+ *
+ * @see EMUCOM_AVAILABLE_BYTES_MASK
+ */
+#define EMUCOM_ERR_NOT_AVAILABLE	0x81000000
+
+/**
+ * Bitmask to extract the number of available bytes on a channel from an EMUCOM
+ * status code.
+ */
+#define EMUCOM_AVAILABLE_BYTES_MASK	0x00ffffff
+/** @endcond */
+
+/**
+ * Read from an EMUCOM channel.
+ *
+ * @note This function must only be used if the device has the
+ *       #JAYLINK_DEV_CAP_EMUCOM capability.
+ *
+ * @param[in,out] devh Device handle.
+ * @param[in] channel Channel to read data from.
+ * @param[out] buffer Buffer to store read data on success. Its content is
+ *                    undefined on failure.
+ * @param[in,out] length Number of bytes to read. On success, the value gets
+ *                       updated with the actual number of bytes read. Unless
+ *                       otherwise specified, the value is undefined on
+ *                       failure.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_TIMEOUT A timeout occurred.
+ * @retval JAYLINK_ERR_PROTO Protocol violation.
+ * @retval JAYLINK_ERR_IO Input/output error.
+ * @retval JAYLINK_ERR_DEV_NOT_SUPPORTED Channel is not supported by the
+ *                                       device.
+ * @retval JAYLINK_ERR_DEV_NOT_AVAILABLE Channel is not available for the
+ *                                       requested amount of data. @p length is
+ *                                       updated with the number of bytes
+ *                                       available on this channel.
+ * @retval JAYLINK_ERR_DEV Unspecified device error.
+ * @retval JAYLINK_ERR Other error conditions.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_emucom_read(struct jaylink_device_handle *devh,
+		uint32_t channel, uint8_t *buffer, uint32_t *length)
+{
+	int ret;
+	struct jaylink_context *ctx;
+	uint8_t buf[10];
+	uint32_t tmp;
+
+	if (!devh || !buffer || !length)
+		return JAYLINK_ERR_ARG;
+
+	ctx = devh->dev->ctx;
+	ret = transport_start_write_read(devh, 10, 4, true);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_start_write_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	buf[0] = CMD_EMUCOM;
+	buf[1] = EMUCOM_CMD_READ;
+
+	buffer_set_u32(buf, channel, 2);
+	buffer_set_u32(buf, *length, 6);
+
+	ret = transport_write(devh, buf, 10);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_read(devh, buf, 4);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	tmp = buffer_get_u32(buf, 0);
+
+	if (tmp == EMUCOM_ERR_NOT_SUPPORTED)
+		return JAYLINK_ERR_DEV_NOT_SUPPORTED;
+
+	if ((tmp & ~EMUCOM_AVAILABLE_BYTES_MASK) == EMUCOM_ERR_NOT_AVAILABLE) {
+		*length = tmp & EMUCOM_AVAILABLE_BYTES_MASK;
+		return JAYLINK_ERR_DEV_NOT_AVAILABLE;
+	}
+
+	if (tmp & EMUCOM_ERR) {
+		log_err(ctx, "Failed to read from channel 0x%x: 0x%x.",
+			channel, tmp);
+		return JAYLINK_ERR_DEV;
+	}
+
+	if (tmp > *length) {
+		log_err(ctx, "Requested at most %u bytes but device "
+			"returned %u bytes.", *length, tmp);
+		return JAYLINK_ERR_PROTO;
+	}
+
+	*length = tmp;
+
+	if (!tmp)
+		return JAYLINK_OK;
+
+	ret = transport_start_read(devh, tmp);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_start_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_read(devh, buffer, tmp);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	return JAYLINK_OK;
+}
+
+/**
+ * Write to an EMUCOM channel.
+ *
+ * @note This function must only be used if the device has the
+ *       #JAYLINK_DEV_CAP_EMUCOM capability.
+ *
+ * @param[in,out] devh Device handle.
+ * @param[in] channel Channel to write data to.
+ * @param[in] buffer Buffer to write data from.
+ * @param[in,out] length Number of bytes to write. On success, the value gets
+ *                       updated with the actual number of bytes written. The
+ *                       value is undefined on failure.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_TIMEOUT A timeout occurred.
+ * @retval JAYLINK_ERR_PROTO Protocol violation.
+ * @retval JAYLINK_ERR_IO Input/output error.
+ * @retval JAYLINK_ERR_DEV_NOT_SUPPORTED Channel is not supported by the
+ *                                       device.
+ * @retval JAYLINK_ERR_DEV Unspecified device error.
+ * @retval JAYLINK_ERR Other error conditions.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_emucom_write(struct jaylink_device_handle *devh,
+		uint32_t channel, const uint8_t *buffer, uint32_t *length)
+{
+	int ret;
+	struct jaylink_context *ctx;
+	uint8_t buf[10];
+	uint32_t tmp;
+
+	if (!devh || !buffer || !length)
+		return JAYLINK_ERR_ARG;
+
+	if (!*length)
+		return JAYLINK_ERR_ARG;
+
+	ctx = devh->dev->ctx;
+	ret = transport_start_write(devh, 10, true);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_start_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	buf[0] = CMD_EMUCOM;
+	buf[1] = EMUCOM_CMD_WRITE;
+
+	buffer_set_u32(buf, channel, 2);
+	buffer_set_u32(buf, *length, 6);
+
+	ret = transport_write(devh, buf, 10);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_start_write_read(devh, *length, 4, false);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_start_write_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_write(devh, buffer, *length);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_read(devh, buf, 4);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	tmp = buffer_get_u32(buf, 0);
+
+	if (tmp == EMUCOM_ERR_NOT_SUPPORTED)
+		return JAYLINK_ERR_DEV_NOT_SUPPORTED;
+
+	if (tmp & EMUCOM_ERR) {
+		log_err(ctx, "Failed to write to channel 0x%x: 0x%x.",
+			channel, tmp);
+		return JAYLINK_ERR_DEV;
+	}
+
+	if (tmp > *length) {
+		log_err(ctx, "Only %u bytes were supposed to be written, but "
+			"the device reported %u written bytes.", *length, tmp);
+		return JAYLINK_ERR_PROTO;
+	}
+
+	*length = tmp;
+
+	return JAYLINK_OK;
+}
diff --git a/src/jtag/drivers/libjaylink/libjaylink/error.c b/src/jtag/drivers/libjaylink/libjaylink/error.c
new file mode 100644
index 0000000..2c696fc
--- /dev/null
+++ b/src/jtag/drivers/libjaylink/libjaylink/error.c
@@ -0,0 +1,118 @@
+/*
+ * This file is part of the libjaylink project.
+ *
+ * Copyright (C) 2014-2015 Marc Schink <jaylink-dev@marcschink.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "libjaylink.h"
+
+/**
+ * @file
+ *
+ * Error handling.
+ */
+
+/**
+ * Return a human-readable description of a libjaylink error code.
+ *
+ * @param[in] error_code A libjaylink error code. See #jaylink_error for valid
+ *                       values.
+ *
+ * @return A string which describes the given error code, or the string
+ *         <i>unknown error</i> if the error code is not known. The string is
+ *         null-terminated and must not be free'd by the caller.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API const char *jaylink_strerror(int error_code)
+{
+	switch (error_code) {
+	case JAYLINK_OK:
+		return "no error";
+	case JAYLINK_ERR:
+		return "unspecified error";
+	case JAYLINK_ERR_ARG:
+		return "invalid argument";
+	case JAYLINK_ERR_MALLOC:
+		return "memory allocation error";
+	case JAYLINK_ERR_TIMEOUT:
+		return "timeout occurred";
+	case JAYLINK_ERR_PROTO:
+		return "protocol violation";
+	case JAYLINK_ERR_NOT_AVAILABLE:
+		return "entity not available";
+	case JAYLINK_ERR_NOT_SUPPORTED:
+		return "operation not supported";
+	case JAYLINK_ERR_IO:
+		return "input/output error";
+	case JAYLINK_ERR_DEV:
+		return "device: unspecified error";
+	case JAYLINK_ERR_DEV_NOT_SUPPORTED:
+		return "device: operation not supported";
+	case JAYLINK_ERR_DEV_NOT_AVAILABLE:
+		return "device: entity not available";
+	case JAYLINK_ERR_DEV_NO_MEMORY:
+		return "device: not enough memory to perform operation";
+	default:
+		return "unknown error";
+	}
+}
+
+/**
+ * Return the name of a libjaylink error code.
+ *
+ * @param[in] error_code A libjaylink error code. See #jaylink_error for valid
+ *                       values.
+ *
+ * @return A string which contains the name for the given error code, or the
+ *         string <i>unknown error code</i> if the error code is not known. The
+ *         string is null-terminated and must not be free'd by the caller.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API const char *jaylink_strerror_name(int error_code)
+{
+	switch (error_code) {
+	case JAYLINK_OK:
+		return "JAYLINK_OK";
+	case JAYLINK_ERR:
+		return "JAYLINK_ERR";
+	case JAYLINK_ERR_ARG:
+		return "JAYLINK_ERR_ARG";
+	case JAYLINK_ERR_MALLOC:
+		return "JAYLINK_ERR_MALLOC";
+	case JAYLINK_ERR_TIMEOUT:
+		return "JAYLINK_ERR_TIMEOUT";
+	case JAYLINK_ERR_PROTO:
+		return "JAYLINK_ERR_PROTO";
+	case JAYLINK_ERR_NOT_AVAILABLE:
+		return "JAYLINK_ERR_NOT_AVAILABLE";
+	case JAYLINK_ERR_NOT_SUPPORTED:
+		return "JAYLINK_ERR_NOT_SUPPORTED";
+	case JAYLINK_ERR_IO:
+		return "JAYLINK_ERR_IO";
+	case JAYLINK_ERR_DEV:
+		return "JAYLINK_ERR_DEV";
+	case JAYLINK_ERR_DEV_NOT_SUPPORTED:
+		return "JAYLINK_ERR_DEV_NOT_SUPPORTED";
+	case JAYLINK_ERR_DEV_NOT_AVAILABLE:
+		return "JAYLINK_ERR_DEV_NOT_AVAILABLE";
+	case JAYLINK_ERR_DEV_NO_MEMORY:
+		return "JAYLINK_ERR_DEV_NO_MEMORY";
+	default:
+		return "unknown error code";
+	}
+}
diff --git a/src/jtag/drivers/libjaylink/libjaylink/fileio.c b/src/jtag/drivers/libjaylink/libjaylink/fileio.c
new file mode 100644
index 0000000..933c366
--- /dev/null
+++ b/src/jtag/drivers/libjaylink/libjaylink/fileio.c
@@ -0,0 +1,499 @@
+/*
+ * This file is part of the libjaylink project.
+ *
+ * Copyright (C) 2015 Marc Schink <jaylink-dev@marcschink.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <string.h>
+
+#include "libjaylink.h"
+#include "libjaylink-internal.h"
+
+/**
+ * @file
+ *
+ * File I/O functions.
+ */
+
+/** @cond PRIVATE */
+#define CMD_FILE_IO		0x1e
+
+#define FILE_IO_CMD_READ	0x64
+#define FILE_IO_CMD_WRITE	0x65
+#define FILE_IO_CMD_GET_SIZE	0x66
+#define FILE_IO_CMD_DELETE	0x67
+
+#define FILE_IO_PARAM_FILENAME	0x01
+#define FILE_IO_PARAM_OFFSET	0x02
+#define FILE_IO_PARAM_LENGTH	0x03
+
+#define FILE_IO_ERR		0x80000000
+/** @endcond */
+
+/**
+ * Read from a file.
+ *
+ * The maximum amount of data that can be read from a file at once is
+ * #JAYLINK_FILE_MAX_TRANSFER_SIZE bytes. Multiple reads in conjunction with
+ * the @p offset parameter are needed for larger files.
+ *
+ * @note This function must only be used if the device has the
+ *       #JAYLINK_DEV_CAP_FILE_IO capability.
+ *
+ * @param[in,out] devh Device handle.
+ * @param[in] filename Name of the file to read from. The length of the name
+ *                     must not exceed #JAYLINK_FILE_NAME_MAX_LENGTH bytes.
+ * @param[out] buffer Buffer to store read data on success. Its content is
+ *                    undefined on failure
+ * @param[in] offset Offset in bytes relative to the beginning of the file from
+ *                   where to start reading.
+ * @param[in,out] length Number of bytes to read. On success, the value gets
+ *                       updated with the actual number of bytes read. The
+ *                       value is undefined on failure.
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_TIMEOUT A timeout occurred.
+ * @retval JAYLINK_ERR_IO Input/output error.
+ * @retval JAYLINK_ERR_DEV Unspecified device error, or the file was not found.
+ * @retval JAYLINK_ERR Other error conditions.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_file_read(struct jaylink_device_handle *devh,
+		const char *filename, uint8_t *buffer, uint32_t offset,
+		uint32_t *length)
+{
+	int ret;
+	struct jaylink_context *ctx;
+	uint8_t buf[18 + JAYLINK_FILE_NAME_MAX_LENGTH];
+	size_t filename_length;
+	uint32_t tmp;
+
+	if (!devh || !filename || !buffer || !length)
+		return JAYLINK_ERR_ARG;
+
+	if (!*length)
+		return JAYLINK_ERR_ARG;
+
+	if (*length > JAYLINK_FILE_MAX_TRANSFER_SIZE)
+		return JAYLINK_ERR_ARG;
+
+	filename_length = strlen(filename);
+
+	if (!filename_length)
+		return JAYLINK_ERR_ARG;
+
+	if (filename_length > JAYLINK_FILE_NAME_MAX_LENGTH)
+		return JAYLINK_ERR_ARG;
+
+	ctx = devh->dev->ctx;
+	ret = transport_start_write(devh, 18 + filename_length, true);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_start_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	buf[0] = CMD_FILE_IO;
+	buf[1] = FILE_IO_CMD_READ;
+	buf[2] = 0x00;
+
+	buf[3] = filename_length;
+	buf[4] = FILE_IO_PARAM_FILENAME;
+	memcpy(buf + 5, filename, filename_length);
+
+	buf[filename_length + 5] = 0x04;
+	buf[filename_length + 6] = FILE_IO_PARAM_OFFSET;
+	buffer_set_u32(buf, offset, filename_length + 7);
+
+	buf[filename_length + 11] = 0x04;
+	buf[filename_length + 12] = FILE_IO_PARAM_LENGTH;
+	buffer_set_u32(buf, *length, filename_length + 13);
+
+	buf[filename_length + 17] = 0x00;
+
+	ret = transport_write(devh, buf, 18 + filename_length);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_start_read(devh, *length);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_start_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_read(devh, buffer, *length);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_start_read(devh, 4);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_start_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_read(devh, buf, 4);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	tmp = buffer_get_u32(buf, 0);
+
+	if (tmp & FILE_IO_ERR)
+		return JAYLINK_ERR_DEV;
+
+	*length = tmp;
+
+	return JAYLINK_OK;
+}
+
+/**
+ * Write to a file.
+ *
+ * If a file does not exist, a new file is created.
+ *
+ * The maximum amount of data that can be written to a file at once is
+ * #JAYLINK_FILE_MAX_TRANSFER_SIZE bytes. Multiple writes in conjunction with
+ * the @p offset parameter are needed for larger files.
+ *
+ * @note This function must only be used if the device has the
+ *       #JAYLINK_DEV_CAP_FILE_IO capability.
+ *
+ * @param[in,out] devh Device handle.
+ * @param[in] filename Name of the file to write to. The length of the name
+ *                     must not exceed #JAYLINK_FILE_NAME_MAX_LENGTH bytes.
+ * @param[in] buffer Buffer to write data from.
+ * @param[in] offset Offset in bytes relative to the beginning of the file from
+ *                   where to start writing.
+ * @param[in,out] length Number of bytes to write. On success, the value gets
+ *                       updated with the actual number of bytes written. The
+ *                       value is undefined on failure.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_TIMEOUT A timeout occurred.
+ * @retval JAYLINK_ERR_IO Input/output error.
+ * @retval JAYLINK_ERR_DEV Unspecified device error, or the file was not found.
+ * @retval JAYLINK_ERR Other error conditions.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_file_write(struct jaylink_device_handle *devh,
+		const char *filename, const uint8_t *buffer, uint32_t offset,
+		uint32_t *length)
+{
+	int ret;
+	struct jaylink_context *ctx;
+	uint8_t buf[18 + JAYLINK_FILE_NAME_MAX_LENGTH];
+	size_t filename_length;
+	uint32_t tmp;
+
+	if (!devh || !filename || !buffer || !length)
+		return JAYLINK_ERR_ARG;
+
+	if (!*length)
+		return JAYLINK_ERR_ARG;
+
+	if (*length > JAYLINK_FILE_MAX_TRANSFER_SIZE)
+		return JAYLINK_ERR_ARG;
+
+	filename_length = strlen(filename);
+
+	if (!filename_length)
+		return JAYLINK_ERR_ARG;
+
+	if (filename_length > JAYLINK_FILE_NAME_MAX_LENGTH)
+		return JAYLINK_ERR_ARG;
+
+	ctx = devh->dev->ctx;
+	ret = transport_start_write(devh, 18 + filename_length, true);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_start_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	buf[0] = CMD_FILE_IO;
+	buf[1] = FILE_IO_CMD_WRITE;
+	buf[2] = 0x00;
+
+	buf[3] = filename_length;
+	buf[4] = FILE_IO_PARAM_FILENAME;
+	memcpy(buf + 5, filename, filename_length);
+
+	buf[filename_length + 5] = 0x04;
+	buf[filename_length + 6] = FILE_IO_PARAM_OFFSET;
+	buffer_set_u32(buf, offset, filename_length + 7);
+
+	buf[filename_length + 11] = 0x04;
+	buf[filename_length + 12] = FILE_IO_PARAM_LENGTH;
+	buffer_set_u32(buf, *length, filename_length + 13);
+
+	buf[filename_length + 17] = 0x00;
+
+	ret = transport_write(devh, buf, 18 + filename_length);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_start_write(devh, *length, true);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_start_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_write(devh, buffer, *length);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_start_read(devh, 4);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_start_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_read(devh, buf, 4);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	tmp = buffer_get_u32(buf, 0);
+
+	if (tmp & FILE_IO_ERR)
+		return JAYLINK_ERR_DEV;
+
+	*length = tmp;
+
+	return JAYLINK_OK;
+}
+
+/**
+ * Retrieve the size of a file.
+ *
+ * @note This function must only be used if the device has the
+ *       #JAYLINK_DEV_CAP_FILE_IO capability.
+ *
+ * @param[in,out] devh Device handle.
+ * @param[in] filename Name of the file to retrieve the size of. The length
+ *                     of the name must not exceed
+ *                     #JAYLINK_FILE_NAME_MAX_LENGTH bytes.
+ * @param[out] size Size of the file in bytes on success, and undefined on
+ *                  failure.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_TIMEOUT A timeout occurred.
+ * @retval JAYLINK_ERR_IO Input/output error.
+ * @retval JAYLINK_ERR_DEV Unspecified device error, or the file was not found.
+ * @retval JAYLINK_ERR Other error conditions.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_file_get_size(struct jaylink_device_handle *devh,
+		const char *filename, uint32_t *size)
+{
+	int ret;
+	struct jaylink_context *ctx;
+	uint8_t buf[6 + JAYLINK_FILE_NAME_MAX_LENGTH];
+	size_t length;
+	uint32_t tmp;
+
+	if (!devh || !filename || !size)
+		return JAYLINK_ERR_ARG;
+
+	length = strlen(filename);
+
+	if (!length)
+		return JAYLINK_ERR_ARG;
+
+	if (length > JAYLINK_FILE_NAME_MAX_LENGTH)
+		return JAYLINK_ERR_ARG;
+
+	ctx = devh->dev->ctx;
+	ret = transport_start_write(devh, 6 + length, true);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_start_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	buf[0] = CMD_FILE_IO;
+	buf[1] = FILE_IO_CMD_GET_SIZE;
+	buf[2] = 0x00;
+
+	buf[3] = length;
+	buf[4] = FILE_IO_PARAM_FILENAME;
+	memcpy(buf + 5, filename, length);
+
+	buf[length + 5] = 0x00;
+
+	ret = transport_write(devh, buf, 6 + length);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_start_read(devh, 4);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_start_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_read(devh, buf, 4);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	tmp = buffer_get_u32(buf, 0);
+
+	if (tmp & FILE_IO_ERR)
+		return JAYLINK_ERR_DEV;
+
+	*size = tmp;
+
+	return JAYLINK_OK;
+}
+
+/**
+ * Delete a file.
+ *
+ * @note This function must only be used if the device has the
+ *       #JAYLINK_DEV_CAP_FILE_IO capability.
+ *
+ * @param[in,out] devh Device handle.
+ * @param[in] filename Name of the file to delete. The length of the name
+ *                     must not exceed #JAYLINK_FILE_NAME_MAX_LENGTH bytes.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_TIMEOUT A timeout occurred.
+ * @retval JAYLINK_ERR_IO Input/output error.
+ * @retval JAYLINK_ERR_DEV Unspecified device error, or the file was not found.
+ * @retval JAYLINK_ERR Other error conditions.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_file_delete(struct jaylink_device_handle *devh,
+		const char *filename)
+{
+	int ret;
+	struct jaylink_context *ctx;
+	uint8_t buf[6 + JAYLINK_FILE_NAME_MAX_LENGTH];
+	size_t length;
+	uint32_t tmp;
+
+	if (!devh || !filename)
+		return JAYLINK_ERR_ARG;
+
+	length = strlen(filename);
+
+	if (!length)
+		return JAYLINK_ERR_ARG;
+
+	if (length > JAYLINK_FILE_NAME_MAX_LENGTH)
+		return JAYLINK_ERR_ARG;
+
+	ctx = devh->dev->ctx;
+	ret = transport_start_write(devh, 6 + length, true);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_start_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	buf[0] = CMD_FILE_IO;
+	buf[1] = FILE_IO_CMD_DELETE;
+	buf[2] = 0x00;
+
+	buf[3] = length;
+	buf[4] = FILE_IO_PARAM_FILENAME;
+	memcpy(buf + 5, filename, length);
+
+	buf[length + 5] = 0x00;
+
+	ret = transport_write(devh, buf, 6 + length);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_start_read(devh, 4);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_start_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_read(devh, buf, 4);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	tmp = buffer_get_u32(buf, 0);
+
+	if (tmp & FILE_IO_ERR)
+		return JAYLINK_ERR_DEV;
+
+	return JAYLINK_OK;
+}
diff --git a/src/jtag/drivers/libjaylink/libjaylink/jtag.c b/src/jtag/drivers/libjaylink/libjaylink/jtag.c
new file mode 100644
index 0000000..c0c65de
--- /dev/null
+++ b/src/jtag/drivers/libjaylink/libjaylink/jtag.c
@@ -0,0 +1,259 @@
+/*
+ * This file is part of the libjaylink project.
+ *
+ * Copyright (C) 2014-2015 Marc Schink <jaylink-dev@marcschink.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdint.h>
+#include <stdbool.h>
+
+#include "libjaylink.h"
+#include "libjaylink-internal.h"
+
+/**
+ * @file
+ *
+ * JTAG functions.
+ */
+
+/** @cond PRIVATE */
+#define CMD_JTAG_IO_V2		0xce
+#define CMD_JTAG_IO_V3		0xcf
+#define CMD_JTAG_CLEAR_TRST	0xde
+#define CMD_JTAG_SET_TRST	0xdf
+
+/**
+ * Error code indicating that there is not enough free memory on the device to
+ * perform the JTAG I/O operation.
+ */
+#define JTAG_IO_ERR_NO_MEMORY	0x06
+/** @endcond */
+
+/**
+ * Perform a JTAG I/O operation.
+ *
+ * @note This function must only be used if the #JAYLINK_TIF_JTAG interface is
+ *       available and selected. Nevertheless, this function can be used if the
+ *       device doesn't have the #JAYLINK_DEV_CAP_SELECT_TIF capability.
+ *
+ * @param[in,out] devh Device handle.
+ * @param[in] tms Buffer to read TMS data from.
+ * @param[in] tdi Buffer to read TDI data from.
+ * @param[out] tdo Buffer to store TDO data on success. Its content is
+ *                 undefined on failure. The buffer must be large enough to
+ *                 contain at least the specified number of bits to transfer.
+ * @param[in] length Number of bits to transfer.
+ * @param[in] version Version of the JTAG command to use.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_TIMEOUT A timeout occurred.
+ * @retval JAYLINK_ERR_IO Input/output error.
+ * @retval JAYLINK_ERR_DEV_NO_MEMORY Not enough memory on the device to perform
+ *                                   the operation.
+ * @retval JAYLINK_ERR_DEV Unspecified device error.
+ * @retval JAYLINK_ERR Other error conditions.
+ *
+ * @see jaylink_select_interface()
+ * @see jaylink_set_speed()
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_jtag_io(struct jaylink_device_handle *devh,
+		const uint8_t *tms, const uint8_t *tdi, uint8_t *tdo,
+		uint16_t length, enum jaylink_jtag_version version)
+{
+	int ret;
+	struct jaylink_context *ctx;
+	uint8_t buf[4];
+	uint16_t num_bytes;
+	uint16_t read_length;
+	uint8_t status;
+	uint8_t cmd;
+
+	if (!devh || !tms || !tdi || !tdo || !length)
+		return JAYLINK_ERR_ARG;
+
+	num_bytes = (length + 7) / 8;
+	read_length = num_bytes;
+
+	switch (version) {
+	case JAYLINK_JTAG_VERSION_2:
+		cmd = CMD_JTAG_IO_V2;
+		break;
+	case JAYLINK_JTAG_VERSION_3:
+		cmd = CMD_JTAG_IO_V3;
+		/* In this version, the response includes a status byte. */
+		read_length++;
+		break;
+	default:
+		return JAYLINK_ERR_ARG;
+	}
+
+	ctx = devh->dev->ctx;
+	ret = transport_start_write_read(devh, 4 + 2 * num_bytes,
+		read_length, true);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_start_write_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	buf[0] = cmd;
+	buf[1] = 0x00;
+	buffer_set_u16(buf, length, 2);
+
+	ret = transport_write(devh, buf, 4);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_write(devh, tms, num_bytes);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_write(devh, tdi, num_bytes);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_read(devh, tdo, num_bytes);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	if (version == JAYLINK_JTAG_VERSION_2)
+		return JAYLINK_OK;
+
+	ret = transport_read(devh, &status, 1);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	if (status == JTAG_IO_ERR_NO_MEMORY) {
+		return JAYLINK_ERR_DEV_NO_MEMORY;
+	} else if (status > 0) {
+		log_err(ctx, "JTAG I/O operation failed: 0x%x.", status);
+		return JAYLINK_ERR_DEV;
+	}
+
+	return JAYLINK_OK;
+}
+
+/**
+ * Clear the JTAG test reset (TRST) signal.
+ *
+ * @param[in,out] devh Device handle.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_TIMEOUT A timeout occurred.
+ * @retval JAYLINK_ERR_IO Input/output error.
+ * @retval JAYLINK_ERR Other error conditions.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_jtag_clear_trst(struct jaylink_device_handle *devh)
+{
+	int ret;
+	struct jaylink_context *ctx;
+	uint8_t buf[1];
+
+	if (!devh)
+		return JAYLINK_ERR_ARG;
+
+	ctx = devh->dev->ctx;
+	ret = transport_start_write(devh, 1, true);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_start_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	buf[0] = CMD_JTAG_CLEAR_TRST;
+
+	ret = transport_write(devh, buf, 1);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	return JAYLINK_OK;
+}
+
+/**
+ * Set the JTAG test reset (TRST) signal.
+ *
+ * @param[in,out] devh Device handle.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_TIMEOUT A timeout occurred.
+ * @retval JAYLINK_ERR_IO Input/output error.
+ * @retval JAYLINK_ERR Other error conditions.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_jtag_set_trst(struct jaylink_device_handle *devh)
+{
+	int ret;
+	struct jaylink_context *ctx;
+	uint8_t buf[1];
+
+	if (!devh)
+		return JAYLINK_ERR_ARG;
+
+	ctx = devh->dev->ctx;
+	ret = transport_start_write(devh, 1, true);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_start_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	buf[0] = CMD_JTAG_SET_TRST;
+
+	ret = transport_write(devh, buf, 1);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	return JAYLINK_OK;
+}
diff --git a/src/jtag/drivers/libjaylink/libjaylink/libjaylink-internal.h b/src/jtag/drivers/libjaylink/libjaylink/libjaylink-internal.h
new file mode 100644
index 0000000..f97ec14
--- /dev/null
+++ b/src/jtag/drivers/libjaylink/libjaylink/libjaylink-internal.h
@@ -0,0 +1,320 @@
+/*
+ * This file is part of the libjaylink project.
+ *
+ * Copyright (C) 2014-2016 Marc Schink <jaylink-dev@marcschink.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef LIBJAYLINK_LIBJAYLINK_INTERNAL_H
+#define LIBJAYLINK_LIBJAYLINK_INTERNAL_H
+
+#include <stddef.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <stdarg.h>
+#include <sys/types.h>
+#ifdef _WIN32
+#include <ws2tcpip.h>
+#else
+#include <sys/socket.h>
+#include <arpa/inet.h>
+#endif
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#ifdef HAVE_LIBUSB
+#include <libusb.h>
+#endif
+
+#include "libjaylink.h"
+
+/**
+ * @file
+ *
+ * Internal libjaylink header file.
+ */
+
+/** Macro to mark private libjaylink symbol. */
+#if defined(_WIN32) || defined(__MSYS__) || defined(__CYGWIN__)
+#define JAYLINK_PRIV
+#else
+#define JAYLINK_PRIV __attribute__ ((visibility ("hidden")))
+#endif
+
+/** Calculate the minimum of two numeric values. */
+#define MIN(a, b) (((a) < (b)) ? (a) : (b))
+
+struct jaylink_context {
+#ifdef HAVE_LIBUSB
+	/** libusb context. */
+	struct libusb_context *usb_ctx;
+#endif
+	/**
+	 * List of allocated device instances.
+	 *
+	 * Used to prevent multiple device instances for the same device.
+	 */
+	struct list *devs;
+	/** List of recently discovered devices. */
+	struct list *discovered_devs;
+	/** Current log level. */
+	enum jaylink_log_level log_level;
+	/** Log callback function. */
+	jaylink_log_callback log_callback;
+	/** User data to be passed to the log callback function. */
+	void *log_callback_data;
+	/** Log domain. */
+	char log_domain[JAYLINK_LOG_DOMAIN_MAX_LENGTH + 1];
+};
+
+struct jaylink_device {
+	/** libjaylink context. */
+	struct jaylink_context *ctx;
+	/** Number of references held on this device instance. */
+	size_t ref_count;
+	/** Host interface. */
+	enum jaylink_host_interface iface;
+	/**
+	 * Serial number of the device.
+	 *
+	 * This number is for enumeration purpose only and can differ from the
+	 * real serial number of the device.
+	 */
+	uint32_t serial_number;
+	/** Indicates whether the serial number is valid. */
+	bool valid_serial_number;
+#ifdef HAVE_LIBUSB
+	/** libusb device instance. */
+	struct libusb_device *usb_dev;
+	/** USB address of the device. */
+	uint8_t usb_address;
+#endif
+	/**
+	 * IPv4 address.
+	 *
+	 * The address is encoded as string in quad-dotted decimal format.
+	 *
+	 * This field is used for devices with host interface #JAYLINK_HIF_TCP
+	 * only.
+	 */
+	char ipv4_address[INET_ADDRSTRLEN];
+	/**
+	 * Media Access Control (MAC) address.
+	 *
+	 * This field is used for devices with host interface #JAYLINK_HIF_TCP
+	 * only.
+	 */
+	uint8_t mac_address[JAYLINK_MAC_ADDRESS_LENGTH];
+	/** Indicates whether the MAC address is available. */
+	bool has_mac_address;
+	/**
+	 * Product name.
+	 *
+	 * This field is used for devices with host interface #JAYLINK_HIF_TCP
+	 * only.
+	 */
+	char product_name[JAYLINK_PRODUCT_NAME_MAX_LENGTH];
+	/** Indicates whether the product name is available. */
+	bool has_product_name;
+	/**
+	 * Nickname.
+	 *
+	 * This field is used for devices with host interface #JAYLINK_HIF_TCP
+	 * only.
+	 */
+	char nickname[JAYLINK_NICKNAME_MAX_LENGTH];
+	/** Indicates whether the nickname is available. */
+	bool has_nickname;
+	/**
+	 * Hardware version.
+	 *
+	 * This field is used for devices with host interface #JAYLINK_HIF_TCP
+	 * only.
+	 */
+	struct jaylink_hardware_version hw_version;
+	/** Indicates whether the hardware version is available. */
+	bool has_hw_version;
+};
+
+struct jaylink_device_handle {
+	/** Device instance. */
+	struct jaylink_device *dev;
+	/**
+	 * Buffer for write and read operations.
+	 *
+	 * Note that write and read operations are always processed
+	 * consecutively and therefore the same buffer can be used for both.
+	 */
+	uint8_t *buffer;
+	/** Buffer size. */
+	size_t buffer_size;
+	/** Number of bytes left for the read operation. */
+	size_t read_length;
+	/** Number of bytes available in the buffer to be read. */
+	size_t bytes_available;
+	/** Current read position in the buffer. */
+	size_t read_pos;
+	/**
+	 * Number of bytes left to be written before the write operation will
+	 * be performed.
+	 */
+	size_t write_length;
+	/**
+	 * Current write position in the buffer.
+	 *
+	 * This is equivalent to the number of bytes in the buffer and used for
+	 * write operations only.
+	 */
+	size_t write_pos;
+#ifdef HAVE_LIBUSB
+	/** libusb device handle. */
+	struct libusb_device_handle *usb_devh;
+	/** USB interface number of the device. */
+	uint8_t interface_number;
+	/** USB interface IN endpoint of the device. */
+	uint8_t endpoint_in;
+	/** USB interface OUT endpoint of the device. */
+	uint8_t endpoint_out;
+#endif
+	/**
+	 * Socket descriptor.
+	 *
+	 * This field is used for devices with host interface #JAYLINK_HIF_TCP
+	 * only.
+	 */
+	int sock;
+};
+
+struct list {
+	void *data;
+	struct list *next;
+};
+
+typedef bool (*list_compare_callback)(const void *data, const void *user_data);
+
+/*--- buffer.c --------------------------------------------------------------*/
+
+JAYLINK_PRIV void buffer_set_u16(uint8_t *buffer, uint16_t value,
+		size_t offset);
+JAYLINK_PRIV uint16_t buffer_get_u16(const uint8_t *buffer, size_t offset);
+JAYLINK_PRIV void buffer_set_u32(uint8_t *buffer, uint32_t value,
+		size_t offset);
+JAYLINK_PRIV uint32_t buffer_get_u32(const uint8_t *buffer, size_t offset);
+
+/*--- device.c --------------------------------------------------------------*/
+
+JAYLINK_PRIV struct jaylink_device *device_allocate(
+		struct jaylink_context *ctx);
+
+/*--- discovery_tcp.c -------------------------------------------------------*/
+
+JAYLINK_PRIV int discovery_tcp_scan(struct jaylink_context *ctx);
+
+/*--- discovery_usb.c -------------------------------------------------------*/
+
+JAYLINK_PRIV int discovery_usb_scan(struct jaylink_context *ctx);
+
+/*--- list.c ----------------------------------------------------------------*/
+
+JAYLINK_PRIV struct list *list_prepend(struct list *list, void *data);
+JAYLINK_PRIV struct list *list_remove(struct list *list, const void *data);
+JAYLINK_PRIV struct list *list_find_custom(struct list *list,
+		list_compare_callback callback, const void *user_data);
+JAYLINK_PRIV size_t list_length(struct list *list);
+JAYLINK_PRIV void list_free(struct list *list);
+
+/*--- log.c -----------------------------------------------------------------*/
+
+JAYLINK_PRIV int log_vprintf(const struct jaylink_context *ctx,
+		enum jaylink_log_level level, const char *format, va_list args,
+		void *user_data);
+JAYLINK_PRIV void log_err(const struct jaylink_context *ctx,
+		const char *format, ...);
+JAYLINK_PRIV void log_warn(const struct jaylink_context *ctx,
+		const char *format, ...);
+JAYLINK_PRIV void log_info(const struct jaylink_context *ctx,
+		const char *format, ...);
+JAYLINK_PRIV void log_dbg(const struct jaylink_context *ctx,
+		const char *format, ...);
+JAYLINK_PRIV void log_dbgio(const struct jaylink_context *ctx,
+		const char *format, ...);
+
+/*--- socket.c --------------------------------------------------------------*/
+
+JAYLINK_PRIV bool socket_close(int sock);
+JAYLINK_PRIV bool socket_bind(int sock, const struct sockaddr *address,
+		size_t length);
+JAYLINK_PRIV bool socket_send(int sock, const void *buffer, size_t *length,
+		int flags);
+JAYLINK_PRIV bool socket_recv(int sock, void *buffer, size_t *length,
+		int flags);
+JAYLINK_PRIV bool socket_sendto(int sock, const void *buffer, size_t *length,
+		int flags, const struct sockaddr *address,
+		size_t address_length);
+JAYLINK_PRIV bool socket_recvfrom(int sock, void *buffer, size_t *length,
+		int flags, struct sockaddr *address, size_t *address_length);
+JAYLINK_PRIV bool socket_set_option(int sock, int level, int option,
+		const void *value, size_t length);
+
+/*--- transport.c -----------------------------------------------------------*/
+
+JAYLINK_PRIV int transport_open(struct jaylink_device_handle *devh);
+JAYLINK_PRIV int transport_close(struct jaylink_device_handle *devh);
+JAYLINK_PRIV int transport_start_write_read(struct jaylink_device_handle *devh,
+		size_t write_length, size_t read_length, bool has_command);
+JAYLINK_PRIV int transport_start_write(struct jaylink_device_handle *devh,
+		size_t length, bool has_command);
+JAYLINK_PRIV int transport_start_read(struct jaylink_device_handle *devh,
+		size_t length);
+JAYLINK_PRIV int transport_write(struct jaylink_device_handle *devh,
+		const uint8_t *buffer, size_t length);
+JAYLINK_PRIV int transport_read(struct jaylink_device_handle *devh,
+		uint8_t *buffer, size_t length);
+
+/*--- transport_usb.c -------------------------------------------------------*/
+
+JAYLINK_PRIV int transport_usb_open(struct jaylink_device_handle *devh);
+JAYLINK_PRIV int transport_usb_close(struct jaylink_device_handle *devh);
+JAYLINK_PRIV int transport_usb_start_write_read(
+		struct jaylink_device_handle *devh, size_t write_length,
+		size_t read_length, bool has_command);
+JAYLINK_PRIV int transport_usb_start_write(struct jaylink_device_handle *devh,
+		size_t length, bool has_command);
+JAYLINK_PRIV int transport_usb_start_read(struct jaylink_device_handle *devh,
+		size_t length);
+JAYLINK_PRIV int transport_usb_write(struct jaylink_device_handle *devh,
+		const uint8_t *buffer, size_t length);
+JAYLINK_PRIV int transport_usb_read(struct jaylink_device_handle *devh,
+		uint8_t *buffer, size_t length);
+
+/*--- transport_tcp.c -------------------------------------------------------*/
+
+JAYLINK_PRIV int transport_tcp_open(struct jaylink_device_handle *devh);
+JAYLINK_PRIV int transport_tcp_close(struct jaylink_device_handle *devh);
+JAYLINK_PRIV int transport_tcp_start_write_read(
+		struct jaylink_device_handle *devh, size_t write_length,
+		size_t read_length, bool has_command);
+JAYLINK_PRIV int transport_tcp_start_write(struct jaylink_device_handle *devh,
+		size_t length, bool has_command);
+JAYLINK_PRIV int transport_tcp_start_read(struct jaylink_device_handle *devh,
+		size_t length);
+JAYLINK_PRIV int transport_tcp_write(struct jaylink_device_handle *devh,
+		const uint8_t *buffer, size_t length);
+JAYLINK_PRIV int transport_tcp_read(struct jaylink_device_handle *devh,
+		uint8_t *buffer, size_t length);
+
+#endif /* LIBJAYLINK_LIBJAYLINK_INTERNAL_H */
diff --git a/src/jtag/drivers/libjaylink/libjaylink/libjaylink.h b/src/jtag/drivers/libjaylink/libjaylink/libjaylink.h
new file mode 100644
index 0000000..223aa84
--- /dev/null
+++ b/src/jtag/drivers/libjaylink/libjaylink/libjaylink.h
@@ -0,0 +1,589 @@
+/*
+ * This file is part of the libjaylink project.
+ *
+ * Copyright (C) 2014-2016 Marc Schink <jaylink-dev@marcschink.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef LIBJAYLINK_LIBJAYLINK_H
+#define LIBJAYLINK_LIBJAYLINK_H
+
+#include <stddef.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <stdarg.h>
+#ifdef _WIN32
+#include <ws2tcpip.h>
+#else
+#include <arpa/inet.h>
+#endif
+
+/**
+ * @file
+ *
+ * Public libjaylink header file to be used by applications.
+ */
+
+/** Error codes returned by libjaylink functions. */
+enum jaylink_error {
+	/** No error. */
+	JAYLINK_OK = 0,
+	/** Unspecified error. */
+	JAYLINK_ERR = -1,
+	/** Invalid argument. */
+	JAYLINK_ERR_ARG = -2,
+	/** Memory allocation error. */
+	JAYLINK_ERR_MALLOC = -3,
+	/** Timeout occurred. */
+	JAYLINK_ERR_TIMEOUT = -4,
+	/** Protocol violation. */
+	JAYLINK_ERR_PROTO = -5,
+	/** Entity not available. */
+	JAYLINK_ERR_NOT_AVAILABLE = -6,
+	/** Operation not supported. */
+	JAYLINK_ERR_NOT_SUPPORTED = -7,
+	/** Input/output error. */
+	JAYLINK_ERR_IO = -8,
+	/** Device: unspecified error. */
+	JAYLINK_ERR_DEV = -1000,
+	/** Device: operation not supported. */
+	JAYLINK_ERR_DEV_NOT_SUPPORTED = -1001,
+	/** Device: entity not available. */
+	JAYLINK_ERR_DEV_NOT_AVAILABLE = -1002,
+	/** Device: not enough memory to perform operation. */
+	JAYLINK_ERR_DEV_NO_MEMORY = -1003
+};
+
+/** libjaylink log levels. */
+enum jaylink_log_level {
+	/** Output no messages. */
+	JAYLINK_LOG_LEVEL_NONE = 0,
+	/** Output error messages. */
+	JAYLINK_LOG_LEVEL_ERROR = 1,
+	/** Output warnings. */
+	JAYLINK_LOG_LEVEL_WARNING = 2,
+	/** Output informational messages. */
+	JAYLINK_LOG_LEVEL_INFO = 3,
+	/** Output debug messages. */
+	JAYLINK_LOG_LEVEL_DEBUG = 4,
+	/** Output I/O debug messages. */
+	JAYLINK_LOG_LEVEL_DEBUG_IO = 5
+};
+
+/** Default libjaylink log domain. */
+#define JAYLINK_LOG_DOMAIN_DEFAULT	"jaylink: "
+
+/** Maximum length of a libjaylink log domain in bytes. */
+#define JAYLINK_LOG_DOMAIN_MAX_LENGTH	32
+
+/** libjaylink capabilities. */
+enum jaylink_capability {
+	/** Library supports USB as host interface. */
+	JAYLINK_CAP_HIF_USB = 0
+};
+
+/** Host interfaces. */
+enum jaylink_host_interface {
+	/** Universal Serial Bus (USB). */
+	JAYLINK_HIF_USB = (1 << 0),
+	/** Transmission Control Protocol (TCP). */
+	JAYLINK_HIF_TCP = (1 << 1)
+};
+
+/**
+ * USB addresses.
+ *
+ * The USB address is a way to identify USB devices and is related to the USB
+ * Product ID (PID) of a device.
+ */
+enum jaylink_usb_address {
+	/** USB address 0 (Product ID 0x0101). */
+	JAYLINK_USB_ADDRESS_0 = 0,
+	/** USB address 1 (Product ID 0x0102). */
+	JAYLINK_USB_ADDRESS_1 = 1,
+	/** USB address 2 (Product ID 0x0103). */
+	JAYLINK_USB_ADDRESS_2 = 2,
+	/** USB address 3 (Product ID 0x0104). */
+	JAYLINK_USB_ADDRESS_3 = 3
+};
+
+/** Device capabilities. */
+enum jaylink_device_capability {
+	/** Device supports retrieval of the hardware version. */
+	JAYLINK_DEV_CAP_GET_HW_VERSION = 1,
+	/** Device supports adaptive clocking. */
+	JAYLINK_DEV_CAP_ADAPTIVE_CLOCKING = 3,
+	/** Device supports reading configuration data. */
+	JAYLINK_DEV_CAP_READ_CONFIG = 4,
+	/** Device supports writing configuration data. */
+	JAYLINK_DEV_CAP_WRITE_CONFIG = 5,
+	/** Device supports retrieval of target interface speeds. */
+	JAYLINK_DEV_CAP_GET_SPEEDS = 9,
+	/** Device supports retrieval of free memory size. */
+	JAYLINK_DEV_CAP_GET_FREE_MEMORY = 11,
+	/** Device supports retrieval of hardware information. */
+	JAYLINK_DEV_CAP_GET_HW_INFO = 12,
+	/** Device supports the setting of the target power supply. */
+	JAYLINK_DEV_CAP_SET_TARGET_POWER = 13,
+	/** Device supports target interface selection. */
+	JAYLINK_DEV_CAP_SELECT_TIF = 17,
+	/** Device supports retrieval of counter values. */
+	JAYLINK_DEV_CAP_GET_COUNTERS = 19,
+	/** Device supports capturing of SWO trace data. */
+	JAYLINK_DEV_CAP_SWO = 23,
+	/** Device supports file I/O operations. */
+	JAYLINK_DEV_CAP_FILE_IO = 26,
+	/** Device supports registration of connections. */
+	JAYLINK_DEV_CAP_REGISTER = 27,
+	/** Device supports retrieval of extended capabilities. */
+	JAYLINK_DEV_CAP_GET_EXT_CAPS = 31,
+	/** Device supports EMUCOM. */
+	JAYLINK_DEV_CAP_EMUCOM = 33,
+	/** Device supports ethernet connectivity. */
+	JAYLINK_DEV_CAP_ETHERNET = 38
+};
+
+/** Hardware information. */
+enum jaylink_hardware_info {
+	/**
+	 * Status of the target power supply.
+	 *
+	 * This indicates whether the target power supply on pin 19 of the
+	 * 20-pin JTAG / SWD connector is enabled or disabled.
+	 *
+	 * @see jaylink_set_target_power()
+	 */
+	JAYLINK_HW_INFO_TARGET_POWER = (1 << 0),
+	/** Current consumption of the target in mA. */
+	JAYLINK_HW_INFO_ITARGET = (1 << 2),
+	/** Peak current consumption of the target in mA. */
+	JAYLINK_HW_INFO_ITARGET_PEAK = (1 << 3)
+};
+
+/** Device counters. */
+enum jaylink_counter {
+	/** Time the device is connected to a target in milliseconds. */
+	JAYLINK_COUNTER_TARGET_TIME = (1 << 0),
+	/**
+	 * Number of times the device was connected or disconnected from a
+	 * target.
+	 */
+	JAYLINK_COUNTER_TARGET_CONNECTIONS = (1 << 1)
+};
+
+/** Device hardware types. */
+enum jaylink_hardware_type {
+	/** J-Link. */
+	JAYLINK_HW_TYPE_JLINK = 0,
+	/** Flasher. */
+	JAYLINK_HW_TYPE_FLASHER = 2,
+	/** J-Link Pro. */
+	JAYLINK_HW_TYPE_JLINK_PRO = 3
+};
+
+/** Target interfaces. */
+enum jaylink_target_interface {
+	/** Joint Test Action Group, IEEE 1149.1 (JTAG). */
+	JAYLINK_TIF_JTAG = 0,
+	/** Serial Wire Debug (SWD). */
+	JAYLINK_TIF_SWD = 1,
+	/** Background Debug Mode 3 (BDM3). */
+	JAYLINK_TIF_BDM3 = 2,
+	/** Renesas’ single-wire debug interface (FINE). */
+	JAYLINK_TIF_FINE = 3,
+	/** 2-wire JTAG for PIC32 compliant devices. */
+	JAYLINK_TIF_2W_JTAG_PIC32 = 4,
+};
+
+/**
+ * JTAG command versions.
+ *
+ * The JTAG command version only affects the device and the communication
+ * protocol. The behaviour of a JTAG operation is not affected at all.
+ */
+enum jaylink_jtag_version {
+	/**
+	 * JTAG command version 2.
+	 *
+	 * This version is obsolete for major hardware version 5 and above. Use
+	 * #JAYLINK_JTAG_VERSION_3 for these versions instead.
+	 */
+	JAYLINK_JTAG_VERSION_2 = 1,
+	/** JTAG command version 3. */
+	JAYLINK_JTAG_VERSION_3 = 2
+};
+
+/** Serial Wire Output (SWO) capture modes. */
+enum jaylink_swo_mode {
+	/** Universal Asynchronous Receiver Transmitter (UART). */
+	JAYLINK_SWO_MODE_UART = 0
+};
+
+/** Target interface speed information. */
+struct jaylink_speed {
+	/** Base frequency in Hz. */
+	uint32_t freq;
+	/** Minimum frequency divider. */
+	uint16_t div;
+};
+
+/** Serial Wire Output (SWO) speed information. */
+struct jaylink_swo_speed {
+	/** Base frequency in Hz. */
+	uint32_t freq;
+	/** Minimum frequency divider. */
+	uint32_t min_div;
+	/** Maximum frequency divider. */
+	uint32_t max_div;
+	/** Minimum prescaler. */
+	uint32_t min_prescaler;
+	/** Maximum prescaler. */
+	uint32_t max_prescaler;
+};
+
+/** Device hardware version. */
+struct jaylink_hardware_version {
+	/** Hardware type. */
+	enum jaylink_hardware_type type;
+	/** Major version. */
+	uint8_t major;
+	/** Minor version. */
+	uint8_t minor;
+	/** Revision number. */
+	uint8_t revision;
+};
+
+/** Device hardware status. */
+struct jaylink_hardware_status {
+	/** Target reference voltage in mV. */
+	uint16_t target_voltage;
+	/** TCK pin state. */
+	bool tck;
+	/** TDI pin state. */
+	bool tdi;
+	/** TDO pin state. */
+	bool tdo;
+	/** TMS pin state. */
+	bool tms;
+	/** TRES pin state. */
+	bool tres;
+	/** TRST pin state. */
+	bool trst;
+};
+
+/** Device connection. */
+struct jaylink_connection {
+	/** Handle. */
+	uint16_t handle;
+	/**
+	 * Process ID (PID).
+	 *
+	 * Identification of the client process. Usually this is the
+	 * Process ID (PID) of the client process in an arbitrary format.
+	 */
+	uint32_t pid;
+	/**
+	 * Host ID (HID).
+	 *
+	 * IPv4 address string of the client in quad-dotted decimal format
+	 * (e.g. 192.0.2.235). The address 0.0.0.0 should be used for the
+	 * registration of an USB connection.
+	 */
+	char hid[INET_ADDRSTRLEN];
+	/** IID. */
+	uint8_t iid;
+	/** CID. */
+	uint8_t cid;
+	/**
+	 * Timestamp of the last registration in milliseconds.
+	 *
+	 * The timestamp is relative to the time the device was powered up.
+	 */
+	uint32_t timestamp;
+};
+
+/** Target interface speed value for adaptive clocking. */
+#define JAYLINK_SPEED_ADAPTIVE_CLOCKING		0xffff
+
+/** Size of the device configuration data in bytes. */
+#define JAYLINK_DEV_CONFIG_SIZE			256
+
+/** Number of bytes required to store device capabilities. */
+#define JAYLINK_DEV_CAPS_SIZE			4
+
+/** Number of bytes required to store extended device capabilities. */
+#define JAYLINK_DEV_EXT_CAPS_SIZE		32
+
+/** Maximum number of connections that can be registered on a device. */
+#define JAYLINK_MAX_CONNECTIONS			16
+
+/** Media Access Control (MAC) address length in bytes. */
+#define JAYLINK_MAC_ADDRESS_LENGTH		6
+
+/**
+ * Maximum length of a device's nickname including trailing null-terminator in
+ * bytes.
+ */
+#define JAYLINK_NICKNAME_MAX_LENGTH		32
+
+/**
+ * Maximum length of a device's product name including trailing null-terminator
+ * in bytes.
+ */
+#define JAYLINK_PRODUCT_NAME_MAX_LENGTH		32
+
+/** Maximum length of a filename in bytes. */
+#define JAYLINK_FILE_NAME_MAX_LENGTH		255
+
+/** Maximum transfer size for a file in bytes. */
+#define JAYLINK_FILE_MAX_TRANSFER_SIZE		0x100000
+
+/**
+ * EMUCOM channel with the system time of the device in milliseconds.
+ *
+ * The channel is read-only and the time is encoded in 4 bytes. The byte order
+ * is little-endian.
+ */
+#define JAYLINK_EMUCOM_CHANNEL_TIME	0x0
+
+/**
+ * Offset of EMUCOM user channels.
+ *
+ * User channels are available to implement vendor and/or device specific
+ * functionalities. All channels below are reserved.
+ */
+#define JAYLINK_EMUCOM_CHANNEL_USER	0x10000
+
+/**
+ * @struct jaylink_context
+ *
+ * Opaque structure representing a libjaylink context.
+ */
+struct jaylink_context;
+
+/**
+ * @struct jaylink_device
+ *
+ * Opaque structure representing a device.
+ */
+struct jaylink_device;
+
+/**
+ * @struct jaylink_device_handle
+ *
+ * Opaque structure representing a handle of a device.
+ */
+struct jaylink_device_handle;
+
+/** Macro to mark public libjaylink API symbol. */
+#ifdef _WIN32
+#define JAYLINK_API
+#else
+#define JAYLINK_API __attribute__ ((visibility ("default")))
+#endif
+
+/**
+ * Log callback function type.
+ *
+ * @param[in] ctx libjaylink context.
+ * @param[in] level Log level.
+ * @param[in] format Message format in printf()-style.
+ * @param[in] args Message arguments.
+ * @param[in,out] user_data User data passed to the callback function.
+ *
+ * @return Number of characters printed on success, or a negative error code on
+ *         failure.
+ */
+typedef int (*jaylink_log_callback)(const struct jaylink_context *ctx,
+		enum jaylink_log_level level, const char *format, va_list args,
+		void *user_data);
+
+/*--- core.c ----------------------------------------------------------------*/
+
+JAYLINK_API int jaylink_init(struct jaylink_context **ctx);
+JAYLINK_API int jaylink_exit(struct jaylink_context *ctx);
+JAYLINK_API bool jaylink_library_has_cap(enum jaylink_capability cap);
+
+/*--- device.c --------------------------------------------------------------*/
+
+JAYLINK_API int jaylink_get_devices(struct jaylink_context *ctx,
+		struct jaylink_device ***devs, size_t *count);
+JAYLINK_API void jaylink_free_devices(struct jaylink_device **devs,
+		bool unref);
+JAYLINK_API int jaylink_device_get_host_interface(
+		const struct jaylink_device *dev,
+		enum jaylink_host_interface *iface);
+JAYLINK_API int jaylink_device_get_serial_number(
+		const struct jaylink_device *dev, uint32_t *serial_number);
+JAYLINK_API int jaylink_device_get_usb_address(
+		const struct jaylink_device *dev,
+		enum jaylink_usb_address *address);
+JAYLINK_API int jaylink_device_get_ipv4_address(
+		const struct jaylink_device *dev, char *address);
+JAYLINK_API int jaylink_device_get_mac_address(
+		const struct jaylink_device *dev, uint8_t *address);
+JAYLINK_API int jaylink_device_get_hardware_version(
+		const struct jaylink_device *dev,
+		struct jaylink_hardware_version *version);
+JAYLINK_API int jaylink_device_get_product_name(
+		const struct jaylink_device *dev, char *name);
+JAYLINK_API int jaylink_device_get_nickname(const struct jaylink_device *dev,
+		char *nickname);
+JAYLINK_API struct jaylink_device *jaylink_ref_device(
+		struct jaylink_device *dev);
+JAYLINK_API void jaylink_unref_device(struct jaylink_device *dev);
+JAYLINK_API int jaylink_open(struct jaylink_device *dev,
+		struct jaylink_device_handle **devh);
+JAYLINK_API int jaylink_close(struct jaylink_device_handle *devh);
+JAYLINK_API struct jaylink_device *jaylink_get_device(
+		struct jaylink_device_handle *devh);
+JAYLINK_API int jaylink_get_firmware_version(
+		struct jaylink_device_handle *devh, char **version,
+		size_t *length);
+JAYLINK_API int jaylink_get_hardware_info(struct jaylink_device_handle *devh,
+		uint32_t mask, uint32_t *info);
+JAYLINK_API int jaylink_get_counters(struct jaylink_device_handle *devh,
+		uint32_t mask, uint32_t *values);
+JAYLINK_API int jaylink_get_hardware_version(
+		struct jaylink_device_handle *devh,
+		struct jaylink_hardware_version *version);
+JAYLINK_API int jaylink_get_hardware_status(struct jaylink_device_handle *devh,
+		struct jaylink_hardware_status *status);
+JAYLINK_API int jaylink_get_caps(struct jaylink_device_handle *devh,
+		uint8_t *caps);
+JAYLINK_API int jaylink_get_extended_caps(struct jaylink_device_handle *devh,
+		uint8_t *caps);
+JAYLINK_API int jaylink_get_free_memory(struct jaylink_device_handle *devh,
+		uint32_t *size);
+JAYLINK_API int jaylink_read_raw_config(struct jaylink_device_handle *devh,
+		uint8_t *config);
+JAYLINK_API int jaylink_write_raw_config(struct jaylink_device_handle *devh,
+		const uint8_t *config);
+JAYLINK_API int jaylink_register(struct jaylink_device_handle *devh,
+		struct jaylink_connection *connection,
+		struct jaylink_connection *connections, size_t *count);
+JAYLINK_API int jaylink_unregister(struct jaylink_device_handle *devh,
+		const struct jaylink_connection *connection,
+		struct jaylink_connection *connections, size_t *count);
+
+/*--- discovery.c -----------------------------------------------------------*/
+
+JAYLINK_API int jaylink_discovery_scan(struct jaylink_context *ctx,
+		uint32_t ifaces);
+
+/*--- emucom.c --------------------------------------------------------------*/
+
+JAYLINK_API int jaylink_emucom_read(struct jaylink_device_handle *devh,
+		uint32_t channel, uint8_t *buffer, uint32_t *length);
+JAYLINK_API int jaylink_emucom_write(struct jaylink_device_handle *devh,
+		uint32_t channel, const uint8_t *buffer, uint32_t *length);
+
+/*--- error.c ---------------------------------------------------------------*/
+
+JAYLINK_API const char *jaylink_strerror(int error_code);
+JAYLINK_API const char *jaylink_strerror_name(int error_code);
+
+/*--- fileio.c --------------------------------------------------------------*/
+
+JAYLINK_API int jaylink_file_read(struct jaylink_device_handle *devh,
+		const char *filename, uint8_t *buffer, uint32_t offset,
+		uint32_t *length);
+JAYLINK_API int jaylink_file_write(struct jaylink_device_handle *devh,
+		const char *filename, const uint8_t *buffer, uint32_t offset,
+		uint32_t *length);
+JAYLINK_API int jaylink_file_get_size(struct jaylink_device_handle *devh,
+		const char *filename, uint32_t *size);
+JAYLINK_API int jaylink_file_delete(struct jaylink_device_handle *devh,
+		const char *filename);
+
+/*--- jtag.c ----------------------------------------------------------------*/
+
+JAYLINK_API int jaylink_jtag_io(struct jaylink_device_handle *devh,
+		const uint8_t *tms, const uint8_t *tdi, uint8_t *tdo,
+		uint16_t length, enum jaylink_jtag_version version);
+JAYLINK_API int jaylink_jtag_clear_trst(struct jaylink_device_handle *devh);
+JAYLINK_API int jaylink_jtag_set_trst(struct jaylink_device_handle *devh);
+
+/*--- log.c -----------------------------------------------------------------*/
+
+JAYLINK_API int jaylink_log_set_level(struct jaylink_context *ctx,
+		enum jaylink_log_level level);
+JAYLINK_API int jaylink_log_get_level(const struct jaylink_context *ctx,
+		enum jaylink_log_level *level);
+JAYLINK_API int jaylink_log_set_callback(struct jaylink_context *ctx,
+		jaylink_log_callback callback, void *user_data);
+JAYLINK_API int jaylink_log_set_domain(struct jaylink_context *ctx,
+		const char *domain);
+JAYLINK_API const char *jaylink_log_get_domain(
+		const struct jaylink_context *ctx);
+
+/*--- strutil.c -------------------------------------------------------------*/
+
+JAYLINK_API int jaylink_parse_serial_number(const char *str,
+		uint32_t *serial_number);
+
+/*--- swd.c -----------------------------------------------------------------*/
+
+JAYLINK_API int jaylink_swd_io(struct jaylink_device_handle *devh,
+		const uint8_t *direction, const uint8_t *out, uint8_t *in,
+		uint16_t length);
+
+/*--- swo.c -----------------------------------------------------------------*/
+
+JAYLINK_API int jaylink_swo_start(struct jaylink_device_handle *devh,
+		enum jaylink_swo_mode mode, uint32_t baudrate, uint32_t size);
+JAYLINK_API int jaylink_swo_stop(struct jaylink_device_handle *devh);
+JAYLINK_API int jaylink_swo_read(struct jaylink_device_handle *devh,
+		uint8_t *buffer, uint32_t *length);
+JAYLINK_API int jaylink_swo_get_speeds(struct jaylink_device_handle *devh,
+		enum jaylink_swo_mode mode, struct jaylink_swo_speed *speed);
+
+/*--- target.c --------------------------------------------------------------*/
+
+JAYLINK_API int jaylink_set_speed(struct jaylink_device_handle *devh,
+		uint16_t speed);
+JAYLINK_API int jaylink_get_speeds(struct jaylink_device_handle *devh,
+		struct jaylink_speed *speed);
+JAYLINK_API int jaylink_select_interface(struct jaylink_device_handle *devh,
+		enum jaylink_target_interface iface,
+		enum jaylink_target_interface *prev_iface);
+JAYLINK_API int jaylink_get_available_interfaces(
+		struct jaylink_device_handle *devh, uint32_t *ifaces);
+JAYLINK_API int jaylink_get_selected_interface(
+		struct jaylink_device_handle *devh,
+		enum jaylink_target_interface *iface);
+JAYLINK_API int jaylink_clear_reset(struct jaylink_device_handle *devh);
+JAYLINK_API int jaylink_set_reset(struct jaylink_device_handle *devh);
+JAYLINK_API int jaylink_set_target_power(struct jaylink_device_handle *devh,
+		bool enable);
+
+/*--- util.c ----------------------------------------------------------------*/
+
+JAYLINK_API bool jaylink_has_cap(const uint8_t *caps, uint32_t cap);
+
+/*--- version.c -------------------------------------------------------------*/
+
+JAYLINK_API int jaylink_version_package_get_major(void);
+JAYLINK_API int jaylink_version_package_get_minor(void);
+JAYLINK_API int jaylink_version_package_get_micro(void);
+JAYLINK_API const char *jaylink_version_package_get_string(void);
+JAYLINK_API int jaylink_version_library_get_current(void);
+JAYLINK_API int jaylink_version_library_get_revision(void);
+JAYLINK_API int jaylink_version_library_get_age(void);
+JAYLINK_API const char *jaylink_version_library_get_string(void);
+
+#include "version.h"
+
+#endif /* LIBJAYLINK_LIBJAYLINK_H */
diff --git a/src/jtag/drivers/libjaylink/libjaylink/list.c b/src/jtag/drivers/libjaylink/libjaylink/list.c
new file mode 100644
index 0000000..7c54e50
--- /dev/null
+++ b/src/jtag/drivers/libjaylink/libjaylink/list.c
@@ -0,0 +1,115 @@
+/*
+ * This file is part of the libjaylink project.
+ *
+ * Copyright (C) 2014-2016 Marc Schink <jaylink-dev@marcschink.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdlib.h>
+
+#include "libjaylink-internal.h"
+
+/**
+ * @file
+ *
+ * Singly-linked list functions.
+ */
+
+/** @private */
+JAYLINK_PRIV struct list *list_prepend(struct list *list, void *data)
+{
+	struct list *item;
+
+	item = malloc(sizeof(struct list));
+
+	if (!item)
+		return NULL;
+
+	item->data = data;
+	item->next = list;
+
+	return item;
+}
+
+/** @private */
+JAYLINK_PRIV struct list *list_remove(struct list *list, const void *data)
+{
+	struct list *item;
+	struct list *tmp;
+
+	if (!list)
+		return NULL;
+
+	item = list;
+
+	if (item->data == data) {
+		tmp = item->next;
+		free(item);
+		return tmp;
+	}
+
+	while (item->next) {
+		if (item->next->data == data) {
+			tmp = item->next;
+			item->next = item->next->next;
+			free(tmp);
+			break;
+		}
+
+		item = item->next;
+	}
+
+	return list;
+}
+
+/** @private */
+JAYLINK_PRIV struct list *list_find_custom(struct list *list,
+		list_compare_callback callback, const void *user_data)
+{
+	if (!callback)
+		return NULL;
+
+	while (list) {
+		if (callback(list->data, user_data))
+			return list;
+
+		list = list->next;
+	}
+
+	return NULL;
+}
+
+/** @private */
+JAYLINK_PRIV size_t list_length(struct list *list)
+{
+	size_t length;
+
+	for (length = 0; list; length++)
+		list = list->next;
+
+	return length;
+}
+
+/** @private */
+JAYLINK_PRIV void list_free(struct list *list)
+{
+	struct list *tmp;
+
+	while (list) {
+		tmp = list;
+		list = list->next;
+		free(tmp);
+	}
+}
diff --git a/src/jtag/drivers/libjaylink/libjaylink/log.c b/src/jtag/drivers/libjaylink/libjaylink/log.c
new file mode 100644
index 0000000..07ef172
--- /dev/null
+++ b/src/jtag/drivers/libjaylink/libjaylink/log.c
@@ -0,0 +1,266 @@
+/*
+ * This file is part of the libjaylink project.
+ *
+ * Copyright (C) 2014-2015 Marc Schink <jaylink-dev@marcschink.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <stdio.h>
+#include <stdarg.h>
+
+#include "libjaylink.h"
+#include "libjaylink-internal.h"
+
+/**
+ * @file
+ *
+ * Logging functions.
+ */
+
+/**
+ * Set the libjaylink log level.
+ *
+ * @param[in,out] ctx libjaylink context.
+ * @param[in] level Log level to set.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_log_set_level(struct jaylink_context *ctx,
+		enum jaylink_log_level level)
+{
+	if (!ctx)
+		return JAYLINK_ERR_ARG;
+
+	if (level > JAYLINK_LOG_LEVEL_DEBUG_IO)
+		return JAYLINK_ERR_ARG;
+
+	ctx->log_level = level;
+
+	return JAYLINK_OK;
+}
+
+/**
+ * Get the libjaylink log level.
+ *
+ * @param[in] ctx libjaylink context.
+ * @param[out] level Log level on success, and undefined on failure.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_log_get_level(const struct jaylink_context *ctx,
+		enum jaylink_log_level *level)
+{
+	if (!ctx || !level)
+		return JAYLINK_ERR_ARG;
+
+	*level = ctx->log_level;
+
+	return JAYLINK_OK;
+}
+
+/**
+ * Set the libjaylink log callback function.
+ *
+ * @param[in,out] ctx libjaylink context.
+ * @param[in] callback Callback function to use, or NULL to use the default log
+ *                     function.
+ * @param[in] user_data User data to be passed to the callback function.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_log_set_callback(struct jaylink_context *ctx,
+		jaylink_log_callback callback, void *user_data)
+{
+	if (!ctx)
+		return JAYLINK_ERR_ARG;
+
+	if (callback) {
+		ctx->log_callback = callback;
+		ctx->log_callback_data = user_data;
+	} else {
+		ctx->log_callback = &log_vprintf;
+		ctx->log_callback_data = NULL;
+	}
+
+	return JAYLINK_OK;
+}
+
+/**
+ * Set the libjaylink log domain.
+ *
+ * The log domain is a string which is used as prefix for all log messages to
+ * differentiate them from messages of other libraries.
+ *
+ * The maximum length of the log domain is #JAYLINK_LOG_DOMAIN_MAX_LENGTH
+ * bytes, excluding the trailing null-terminator. A log domain which exceeds
+ * this length will be silently truncated.
+ *
+ * @param[in,out] ctx libjaylink context.
+ * @param[in] domain Log domain to use. To set the default log domain, use
+ *                   #JAYLINK_LOG_DOMAIN_DEFAULT.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR Other error conditions.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_log_set_domain(struct jaylink_context *ctx,
+		const char *domain)
+{
+	int ret;
+
+	if (!ctx || !domain)
+		return JAYLINK_ERR_ARG;
+
+	ret = snprintf(ctx->log_domain, JAYLINK_LOG_DOMAIN_MAX_LENGTH + 1,
+		"%s", domain);
+
+	if (ret < 0)
+		return JAYLINK_ERR;
+
+	return JAYLINK_OK;
+}
+
+/**
+ * Get the libjaylink log domain.
+ *
+ * @param[in] ctx libjaylink context.
+ *
+ * @return A string which contains the current log domain on success, or NULL
+ *         on failure. The string is null-terminated and must not be free'd by
+ *         the caller.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API const char *jaylink_log_get_domain(
+		const struct jaylink_context *ctx)
+{
+	if (!ctx)
+		return NULL;
+
+	return ctx->log_domain;
+}
+
+/** @private */
+JAYLINK_PRIV int log_vprintf(const struct jaylink_context *ctx,
+		enum jaylink_log_level level, const char *format, va_list args,
+		void *user_data)
+{
+	(void)user_data;
+
+	/*
+	 * Filter out messages with higher verbosity than the verbosity of the
+	 * current log level.
+	 */
+	if (level > ctx->log_level)
+		return 0;
+
+	if (ctx->log_domain[0] != '\0')
+		fprintf(stderr, "%s", ctx->log_domain);
+
+	vfprintf(stderr, format, args);
+	fprintf(stderr, "\n");
+
+	return 0;
+}
+
+/** @private */
+JAYLINK_PRIV void log_err(const struct jaylink_context *ctx,
+		const char *format, ...)
+{
+	va_list args;
+
+	if (!ctx)
+		return;
+
+	va_start(args, format);
+	ctx->log_callback(ctx, JAYLINK_LOG_LEVEL_ERROR, format, args,
+		ctx->log_callback_data);
+	va_end(args);
+}
+
+/** @private */
+JAYLINK_PRIV void log_warn(const struct jaylink_context *ctx,
+		const char *format, ...)
+{
+	va_list args;
+
+	if (!ctx)
+		return;
+
+	va_start(args, format);
+	ctx->log_callback(ctx, JAYLINK_LOG_LEVEL_WARNING, format, args,
+		ctx->log_callback_data);
+	va_end(args);
+}
+
+/** @private */
+JAYLINK_PRIV void log_info(const struct jaylink_context *ctx,
+		const char *format, ...)
+{
+	va_list args;
+
+	if (!ctx)
+		return;
+
+	va_start(args, format);
+	ctx->log_callback(ctx, JAYLINK_LOG_LEVEL_INFO, format, args,
+		ctx->log_callback_data);
+	va_end(args);
+}
+
+/** @private */
+JAYLINK_PRIV void log_dbg(const struct jaylink_context *ctx,
+		const char *format, ...)
+{
+	va_list args;
+
+	if (!ctx)
+		return;
+
+	va_start(args, format);
+	ctx->log_callback(ctx, JAYLINK_LOG_LEVEL_DEBUG, format, args,
+		ctx->log_callback_data);
+	va_end(args);
+}
+
+/** @private */
+JAYLINK_PRIV void log_dbgio(const struct jaylink_context *ctx,
+		const char *format, ...)
+{
+	va_list args;
+
+	if (!ctx)
+		return;
+
+	va_start(args, format);
+	ctx->log_callback(ctx, JAYLINK_LOG_LEVEL_DEBUG_IO, format, args,
+		ctx->log_callback_data);
+	va_end(args);
+}
diff --git a/src/jtag/drivers/libjaylink/libjaylink/socket.c b/src/jtag/drivers/libjaylink/libjaylink/socket.c
new file mode 100644
index 0000000..f2a6588
--- /dev/null
+++ b/src/jtag/drivers/libjaylink/libjaylink/socket.c
@@ -0,0 +1,257 @@
+/*
+ * This file is part of the libjaylink project.
+ *
+ * Copyright (C) 2016-2017 Marc Schink <jaylink-dev@marcschink.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifdef _WIN32
+#include <winsock2.h>
+#else
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <unistd.h>
+#endif
+
+#include "libjaylink.h"
+#include "libjaylink-internal.h"
+
+/**
+ * @file
+ *
+ * Socket abstraction layer.
+ */
+
+/**
+ * Close a socket.
+ *
+ * @param[in] sock Socket descriptor.
+ *
+ * @return Whether the socket was successfully closed.
+ */
+JAYLINK_PRIV bool socket_close(int sock)
+{
+	int ret;
+
+#ifdef _WIN32
+	ret = closesocket(sock);
+#else
+	ret = close(sock);
+#endif
+
+	if (!ret)
+		return true;
+
+	return false;
+}
+
+/**
+ * Bind an address to a socket.
+ *
+ * @param[in] sock Socket descriptor.
+ * @param[in] address Address to be bound to the socket.
+ * @param[in] length Length of the structure pointed to by @p address in bytes.
+ *
+ * @return Whether the address was successfully assigned to the socket.
+ */
+JAYLINK_PRIV bool socket_bind(int sock, const struct sockaddr *address,
+		size_t length)
+{
+	int ret;
+
+	ret = bind(sock, address, length);
+
+#ifdef _WIN32
+	if (ret == SOCKET_ERROR)
+		return false;
+#else
+	if (ret < 0)
+		return false;
+#endif
+
+	return true;
+}
+
+/**
+ * Send a message on a socket.
+ *
+ * @param[in] sock Socket descriptor.
+ * @param[in] buffer Buffer of the message to be sent.
+ * @param[in,out] length Length of the message in bytes. On success, the value
+ *                       gets updated with the actual number of bytes sent. The
+ *                       value is undefined on failure.
+ * @param[in] flags Flags to modify the function behaviour. Use bitwise OR to
+ *                  specify multiple flags.
+ *
+ * @return Whether the message was sent successfully.
+ */
+JAYLINK_PRIV bool socket_send(int sock, const void *buffer, size_t *length,
+		int flags)
+{
+	ssize_t ret;
+
+	ret = send(sock, buffer, *length, flags);
+#ifdef _WIN32
+	if (ret == SOCKET_ERROR)
+		return false;
+#else
+	if (ret < 0)
+		return false;
+#endif
+	*length = ret;
+
+	return true;
+}
+
+/**
+ * Receive a message from a socket.
+ *
+ * @param[in] sock Socket descriptor.
+ * @param[out] buffer Buffer to store the received message on success. Its
+ *                    content is undefined on failure.
+ * @param[in,out] length Maximum length of the message in bytes. On success,
+ *                       the value gets updated with the actual number of
+ *                       received bytes. The value is undefined on failure.
+ * @param[in] flags Flags to modify the function behaviour. Use bitwise OR to
+ *                  specify multiple flags.
+ *
+ * @return Whether a message was successfully received.
+ */
+JAYLINK_PRIV bool socket_recv(int sock, void *buffer, size_t *length,
+		int flags)
+{
+	ssize_t ret;
+
+	ret = recv(sock, buffer, *length, flags);
+
+#ifdef _WIN32
+	if (ret == SOCKET_ERROR)
+		return false;
+#else
+	if (ret < 0)
+		return false;
+#endif
+
+	*length = ret;
+
+	return true;
+}
+
+/**
+ * Send a message on a socket.
+ *
+ * @param[in] sock Socket descriptor.
+ * @param[in] buffer Buffer to send message from.
+ * @param[in,out] length Number of bytes to send. On success, the value gets
+ *                       updated with the actual number of bytes sent. The
+ *                       value is undefined on failure.
+ * @param[in] flags Flags to modify the function behaviour. Use bitwise OR to
+ *                  specify multiple flags.
+ * @param[in] address Destination address of the message.
+ * @param[in] address_length Length of the structure pointed to by @p address
+ *                           in bytes.
+ *
+ * @return Whether the message was successfully sent.
+ */
+JAYLINK_PRIV bool socket_sendto(int sock, const void *buffer, size_t *length,
+		int flags, const struct sockaddr *address,
+		size_t address_length)
+{
+	ssize_t ret;
+
+	ret = sendto(sock, buffer, *length, flags, address, address_length);
+
+#ifdef _WIN32
+	if (ret == SOCKET_ERROR)
+		return false;
+#else
+	if (ret < 0)
+		return false;
+#endif
+
+	*length = ret;
+
+	return true;
+}
+
+/**
+ * Receive a message from a socket.
+ *
+ * @param[in] sock Socket descriptor.
+ * @param[out] buffer Buffer to store the received message on success. Its
+ *                    content is undefined on failure.
+ * @param[in,out] length Maximum length of the message in bytes. On success,
+ *                       the value gets updated with the actual number of
+ *                       received bytes. The value is undefined on failure.
+ * @param[in] flags Flags to modify the function behaviour. Use bitwise OR to
+ *                  specify multiple flags.
+ * @param[out] address Structure to store the source address of the message on
+ *                     success. Its content is undefined on failure.
+ *                     Can be NULL.
+ * @param[in,out] address_length Length of the structure pointed to by
+ *                               @p address in bytes. On success, the value
+ *                               gets updated with the actual length of the
+ *                               structure. The value is undefined on failure.
+ *                               Should be NULL if @p address is NULL.
+ *
+ * @return Whether a message was successfully received.
+ */
+JAYLINK_PRIV bool socket_recvfrom(int sock, void *buffer, size_t *length,
+		int flags, struct sockaddr *address, size_t *address_length)
+{
+	ssize_t ret;
+#ifdef _WIN32
+	int tmp;
+
+	tmp = *address_length;
+	ret = recvfrom(sock, buffer, *length, flags, address, &tmp);
+
+	if (ret == SOCKET_ERROR)
+		return false;
+#else
+	socklen_t tmp;
+
+	tmp = *address_length;
+	ret = recvfrom(sock, buffer, *length, flags, address, &tmp);
+
+	if (ret < 0)
+		return false;
+#endif
+
+	*address_length = tmp;
+	*length = ret;
+
+	return true;
+}
+
+/**
+ * Set an option on a socket.
+ *
+ * @param[in] sock Socket descriptor.
+ * @param[in] level Level at which the option is defined.
+ * @param[in] option Option to set the value for.
+ * @param[in] value Buffer of the value to be set.
+ * @param[in] length Length of the value buffer in bytes.
+ *
+ * @return Whether the option was set successfully.
+ */
+JAYLINK_PRIV bool socket_set_option(int sock, int level, int option,
+		const void *value, size_t length)
+{
+	if (!setsockopt(sock, level, option, value, length))
+		return true;
+
+	return false;
+}
diff --git a/src/jtag/drivers/libjaylink/libjaylink/strutil.c b/src/jtag/drivers/libjaylink/libjaylink/strutil.c
new file mode 100644
index 0000000..283ed17
--- /dev/null
+++ b/src/jtag/drivers/libjaylink/libjaylink/strutil.c
@@ -0,0 +1,66 @@
+/*
+ * This file is part of the libjaylink project.
+ *
+ * Copyright (C) 2016 Marc Schink <jaylink-dev@marcschink.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdlib.h>
+#include <stdint.h>
+#include <errno.h>
+
+#include "libjaylink.h"
+
+/**
+ * @file
+ *
+ * String utility functions.
+ */
+
+/**
+ * Convert a string representation of a serial number to an integer.
+ *
+ * The string representation of the serial number must be in decimal form.
+ *
+ * @param[in] str String representation to convert.
+ * @param[out] serial_number Serial number on success, and undefined on
+ *                           failure.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR Conversion error. Serial number is invalid or string
+ *                     representation contains invalid character(s).
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_parse_serial_number(const char *str,
+		uint32_t *serial_number)
+{
+	char *end_ptr;
+	unsigned long long tmp;
+
+	if (!str || !serial_number)
+		return JAYLINK_ERR_ARG;
+
+	errno = 0;
+	tmp = strtoull(str, &end_ptr, 10);
+
+	if (*end_ptr != '\0' || errno != 0 || tmp > UINT32_MAX)
+		return JAYLINK_ERR;
+
+	*serial_number = tmp;
+
+	return JAYLINK_OK;
+}
diff --git a/src/jtag/drivers/libjaylink/libjaylink/swd.c b/src/jtag/drivers/libjaylink/libjaylink/swd.c
new file mode 100644
index 0000000..29265b7
--- /dev/null
+++ b/src/jtag/drivers/libjaylink/libjaylink/swd.c
@@ -0,0 +1,148 @@
+/*
+ * This file is part of the libjaylink project.
+ *
+ * Copyright (C) 2014-2015 Marc Schink <jaylink-dev@marcschink.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdint.h>
+#include <stdbool.h>
+
+#include "libjaylink.h"
+#include "libjaylink-internal.h"
+
+/**
+ * @file
+ *
+ * Serial Wire Debug (SWD) functions.
+ */
+
+/** @cond PRIVATE */
+#define CMD_SWD_IO 0xcf
+
+/**
+ * Error code indicating that there is not enough free memory on the device to
+ * perform the SWD I/O operation.
+ */
+#define SWD_IO_ERR_NO_MEMORY	0x06
+/** @endcond */
+
+/**
+ * Perform a SWD I/O operation.
+ *
+ * @note This function must only be used if the #JAYLINK_TIF_SWD interface is
+ *       available and selected.
+ *
+ * @param[in,out] devh Device handle.
+ * @param[in] direction Buffer to read the transfer direction from.
+ * @param[in] out Buffer to read host-to-target data from.
+ * @param[out] in Buffer to store target-to-host data on success. Its content
+ *                is undefined on failure. The buffer must be large enough to
+ *                contain at least the specified number of bits to transfer.
+ * @param[in] length Total number of bits to transfer from host to target and
+ *                   vice versa.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_TIMEOUT A timeout occurred.
+ * @retval JAYLINK_ERR_IO Input/output error.
+ * @retval JAYLINK_ERR_DEV_NO_MEMORY Not enough memory on the device to perform
+ *                                   the operation.
+ * @retval JAYLINK_ERR_DEV Unspecified device error.
+ * @retval JAYLINK_ERR Other error conditions.
+ *
+ * @see jaylink_select_interface()
+ * @see jaylink_set_speed()
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_swd_io(struct jaylink_device_handle *devh,
+		const uint8_t *direction, const uint8_t *out, uint8_t *in,
+		uint16_t length)
+{
+	int ret;
+	struct jaylink_context *ctx;
+	uint16_t num_bytes;
+	uint8_t buf[4];
+	uint8_t status;
+
+	if (!devh || !direction || !out || !in || !length)
+		return JAYLINK_ERR_ARG;
+
+	ctx = devh->dev->ctx;
+	num_bytes = (length + 7) / 8;
+
+	ret = transport_start_write_read(devh, 4 + 2 * num_bytes,
+		num_bytes + 1, true);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_start_write_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	buf[0] = CMD_SWD_IO;
+	buf[1] = 0x00;
+	buffer_set_u16(buf, length, 2);
+
+	ret = transport_write(devh, buf, 4);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_write(devh, direction, num_bytes);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_write(devh, out, num_bytes);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_read(devh, in, num_bytes);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_read(devh, &status, 1);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	if (status == SWD_IO_ERR_NO_MEMORY) {
+		return JAYLINK_ERR_DEV_NO_MEMORY;
+	} else if (status > 0) {
+		log_err(ctx, "SWD I/O operation failed: 0x%x.", status);
+		return JAYLINK_ERR_DEV;
+	}
+
+	return JAYLINK_OK;
+}
diff --git a/src/jtag/drivers/libjaylink/libjaylink/swo.c b/src/jtag/drivers/libjaylink/libjaylink/swo.c
new file mode 100644
index 0000000..6037f64
--- /dev/null
+++ b/src/jtag/drivers/libjaylink/libjaylink/swo.c
@@ -0,0 +1,453 @@
+/*
+ * This file is part of the libjaylink project.
+ *
+ * Copyright (C) 2015 Marc Schink <jaylink-dev@marcschink.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdint.h>
+#include <stdbool.h>
+
+#include "libjaylink.h"
+#include "libjaylink-internal.h"
+
+/**
+ * @file
+ *
+ * Serial Wire Output (SWO) functions.
+ */
+
+/** @cond PRIVATE */
+#define CMD_SWO			0xeb
+
+#define SWO_CMD_START		0x64
+#define SWO_CMD_STOP		0x65
+#define SWO_CMD_READ		0x66
+#define SWO_CMD_GET_SPEEDS	0x6e
+
+#define SWO_PARAM_MODE		0x01
+#define SWO_PARAM_BAUDRATE	0x02
+#define SWO_PARAM_READ_SIZE	0x03
+#define SWO_PARAM_BUFFER_SIZE	0x04
+
+#define SWO_ERR			0x80000000
+/** @endcond */
+
+/**
+ * Start SWO capture.
+ *
+ * @note This function must be used only if the device has the
+ *       #JAYLINK_DEV_CAP_SWO capability.
+ *
+ * @param[in,out] devh Device handle.
+ * @param[in] mode Mode to capture data with.
+ * @param[in] baudrate Baudrate to capture data in bit per second.
+ * @param[in] size Device internal buffer size in bytes to use for capturing.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_TIMEOUT A timeout occurred.
+ * @retval JAYLINK_ERR_IO Input/output error.
+ * @retval JAYLINK_ERR_DEV Unspecified device error.
+ * @retval JAYLINK_ERR Other error conditions.
+ *
+ * @see jaylink_swo_get_speeds()
+ * @see jaylink_get_free_memory()
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_swo_start(struct jaylink_device_handle *devh,
+		enum jaylink_swo_mode mode, uint32_t baudrate, uint32_t size)
+{
+	int ret;
+	struct jaylink_context *ctx;
+	uint8_t buf[32];
+	uint32_t status;
+
+	if (!devh || !baudrate || !size)
+		return JAYLINK_ERR_ARG;
+
+	if (mode != JAYLINK_SWO_MODE_UART)
+		return JAYLINK_ERR_ARG;
+
+	ctx = devh->dev->ctx;
+	ret = transport_start_write_read(devh, 21, 4, true);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_start_write_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	buf[0] = CMD_SWO;
+	buf[1] = SWO_CMD_START;
+
+	buf[2] = 0x04;
+	buf[3] = SWO_PARAM_MODE;
+	buffer_set_u32(buf, mode, 4);
+
+	buf[8] = 0x04;
+	buf[9] = SWO_PARAM_BAUDRATE;
+	buffer_set_u32(buf, baudrate, 10);
+
+	buf[14] = 0x04;
+	buf[15] = SWO_PARAM_BUFFER_SIZE;
+	buffer_set_u32(buf, size, 16);
+
+	buf[20] = 0x00;
+
+	ret = transport_write(devh, buf, 21);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_read(devh, buf, 4);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	status = buffer_get_u32(buf, 0);
+
+	if (status > 0) {
+		log_err(ctx, "Failed to start capture: 0x%x.", status);
+		return JAYLINK_ERR_DEV;
+	}
+
+	return JAYLINK_OK;
+}
+
+/**
+ * Stop SWO capture.
+ *
+ * @note This function must be used only if the device has the
+ *       #JAYLINK_DEV_CAP_SWO capability.
+ *
+ * @param[in,out] devh Device handle.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_TIMEOUT A timeout occurred.
+ * @retval JAYLINK_ERR_IO Input/output error.
+ * @retval JAYLINK_ERR_DEV Unspecified device error.
+ * @retval JAYLINK_ERR Other error conditions.
+ *
+ * @see jaylink_swo_start()
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_swo_stop(struct jaylink_device_handle *devh)
+{
+	int ret;
+	struct jaylink_context *ctx;
+	uint8_t buf[4];
+	uint32_t status;
+
+	if (!devh)
+		return JAYLINK_ERR_ARG;
+
+	ctx = devh->dev->ctx;
+	ret = transport_start_write_read(devh, 3, 4, true);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_start_write_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	buf[0] = CMD_SWO;
+	buf[1] = SWO_CMD_STOP;
+	buf[2] = 0x00;
+
+	ret = transport_write(devh, buf, 3);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_read(devh, buf, 4);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	status = buffer_get_u32(buf, 0);
+
+	if (status > 0) {
+		log_err(ctx, "Failed to stop capture: 0x%x.", status);
+		return JAYLINK_ERR_DEV;
+	}
+
+	return JAYLINK_OK;
+}
+
+/**
+ * Read SWO trace data.
+ *
+ * @note This function must be used only if the device has the
+ *       #JAYLINK_DEV_CAP_SWO capability.
+ *
+ * @param[in,out] devh Device handle.
+ * @param[out] buffer Buffer to store trace data on success. Its content is
+ *                    undefined on failure.
+ * @param[in,out] length Maximum number of bytes to read. On success, the value
+ *                       gets updated with the actual number of bytes read. The
+ *                       value is undefined on failure.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_TIMEOUT A timeout occurred.
+ * @retval JAYLINK_ERR_PROTO Protocol violation.
+ * @retval JAYLINK_ERR_IO Input/output error.
+ * @retval JAYLINK_ERR_DEV Unspecified device error.
+ * @retval JAYLINK_ERR Other error conditions.
+ *
+ * @see jaylink_swo_start()
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_swo_read(struct jaylink_device_handle *devh,
+		uint8_t *buffer, uint32_t *length)
+{
+	int ret;
+	struct jaylink_context *ctx;
+	uint8_t buf[32];
+	uint32_t status;
+	uint32_t tmp;
+
+	if (!devh || !buffer || !length)
+		return JAYLINK_ERR_ARG;
+
+	ctx = devh->dev->ctx;
+	ret = transport_start_write_read(devh, 9, 8, true);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_start_write_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	buf[0] = CMD_SWO;
+	buf[1] = SWO_CMD_READ;
+
+	buf[2] = 0x04;
+	buf[3] = SWO_PARAM_READ_SIZE;
+	buffer_set_u32(buf, *length, 4);
+
+	buf[8] = 0x00;
+
+	ret = transport_write(devh, buf, 9);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_read(devh, buf, 8);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	status = buffer_get_u32(buf, 0);
+	tmp = buffer_get_u32(buf, 4);
+
+	if (tmp > *length) {
+		log_err(ctx, "Received %u bytes but only %u bytes were "
+			"requested.", tmp, *length);
+		return JAYLINK_ERR_PROTO;
+	}
+
+	*length = tmp;
+
+	if (tmp > 0) {
+		ret = transport_start_read(devh, tmp);
+
+		if (ret != JAYLINK_OK) {
+			log_err(ctx, "transport_start_read() failed: %s.",
+				jaylink_strerror(ret));
+			return ret;
+		}
+
+		ret = transport_read(devh, buffer, tmp);
+
+		if (ret != JAYLINK_OK) {
+			log_err(ctx, "transport_read() failed: %s.",
+				jaylink_strerror(ret));
+			return ret;
+		}
+	}
+
+	if (status > 0) {
+		log_err(ctx, "Failed to read data: 0x%x.", status);
+		return JAYLINK_ERR_DEV;
+	}
+
+	return JAYLINK_OK;
+}
+
+/**
+ * Retrieve SWO speeds.
+
+ * The speeds are calculated as follows:
+ *
+ * @par
+ * <tt>speeds = @a freq / n</tt> with <tt>n >= @a min_div</tt> and
+ * <tt>n <= @a max_div</tt>, where @p n is an integer
+ *
+ * Assuming, for example, a base frequency @a freq of 4500 kHz, a minimum
+ * divider @a min_div of 1 and a maximum divider @a max_div of 8 then the
+ * highest possible SWO speed is 4500 kHz / 1 = 4500 kHz. The next highest
+ * speed is 2250 kHz for a divider of 2, and so on. Accordingly, the lowest
+ * possible speed is 4500 kHz / 8 = 562.5 kHz.
+ *
+ * @note This function must be used only if the device has the
+ *       #JAYLINK_DEV_CAP_SWO capability.
+ *
+ * @param[in,out] devh Device handle.
+ * @param[in] mode Capture mode to retrieve speeds for.
+ * @param[out] speed Speed information on success, and undefined on failure.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_TIMEOUT A timeout occurred.
+ * @retval JAYLINK_ERR_PROTO Protocol violation.
+ * @retval JAYLINK_ERR_IO Input/output error.
+ * @retval JAYLINK_ERR_DEV Unspecified device error.
+ * @retval JAYLINK_ERR Other error conditions.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_swo_get_speeds(struct jaylink_device_handle *devh,
+		enum jaylink_swo_mode mode, struct jaylink_swo_speed *speed)
+{
+	int ret;
+	struct jaylink_context *ctx;
+	uint8_t buf[24];
+	uint32_t tmp;
+	uint32_t length;
+
+	if (!devh || !speed)
+		return JAYLINK_ERR_ARG;
+
+	if (mode != JAYLINK_SWO_MODE_UART)
+		return JAYLINK_ERR_ARG;
+
+	ctx = devh->dev->ctx;
+	ret = transport_start_write_read(devh, 9, 4, true);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_start_write_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	buf[0] = CMD_SWO;
+	buf[1] = SWO_CMD_GET_SPEEDS;
+
+	buf[2] = 0x04;
+	buf[3] = SWO_PARAM_MODE;
+	buffer_set_u32(buf, mode, 4);
+
+	buf[8] = 0x00;
+
+	ret = transport_write(devh, buf, 9);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_read(devh, buf, 4);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	tmp = buffer_get_u32(buf, 0);
+
+	if (tmp & SWO_ERR) {
+		log_err(ctx, "Failed to retrieve speed information: 0x%x.",
+			tmp);
+		return JAYLINK_ERR_DEV;
+	}
+
+	length = tmp;
+
+	if (length != 28) {
+		log_err(ctx, "Unexpected number of bytes received: %u.",
+			length);
+		return JAYLINK_ERR_PROTO;
+	}
+
+	length = length - 4;
+	ret = transport_start_read(devh, length);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_start_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_read(devh, buf, length);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	speed->freq = buffer_get_u32(buf, 4);
+	speed->min_div = buffer_get_u32(buf, 8);
+
+	if (!speed->min_div) {
+		log_err(ctx, "Minimum frequency divider is zero.");
+		return JAYLINK_ERR_PROTO;
+	}
+
+	speed->max_div = buffer_get_u32(buf, 12);
+
+	if (speed->max_div < speed->min_div) {
+		log_err(ctx, "Maximum frequency divider is less than minimum "
+			"frequency divider.");
+		return JAYLINK_ERR_PROTO;
+	}
+
+	speed->min_prescaler = buffer_get_u32(buf, 16);
+	speed->max_prescaler = buffer_get_u32(buf, 20);
+
+	if (speed->max_prescaler < speed->min_prescaler) {
+		log_err(ctx, "Maximum prescaler is less than minimum "
+			"prescaler.");
+		return JAYLINK_ERR_PROTO;
+	}
+
+	return JAYLINK_OK;
+}
diff --git a/src/jtag/drivers/libjaylink/libjaylink/target.c b/src/jtag/drivers/libjaylink/libjaylink/target.c
new file mode 100644
index 0000000..264335b
--- /dev/null
+++ b/src/jtag/drivers/libjaylink/libjaylink/target.c
@@ -0,0 +1,533 @@
+/*
+ * This file is part of the libjaylink project.
+ *
+ * Copyright (C) 2014-2015 Marc Schink <jaylink-dev@marcschink.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdint.h>
+#include <stdbool.h>
+
+#include "libjaylink.h"
+#include "libjaylink-internal.h"
+
+/**
+ * @file
+ *
+ * Target related functions.
+ */
+
+/** @cond PRIVATE */
+#define CMD_SET_SPEED		0x05
+#define CMD_SET_TARGET_POWER	0x08
+#define CMD_GET_SPEEDS		0xc0
+#define CMD_SELECT_TIF		0xc7
+#define CMD_CLEAR_RESET		0xdc
+#define CMD_SET_RESET		0xdd
+
+#define TIF_GET_SELECTED	0xfe
+#define TIF_GET_AVAILABLE	0xff
+/** @endcond */
+
+/**
+ * Set the target interface speed.
+ *
+ * @param[in,out] devh Device handle.
+ * @param[in] speed Speed in kHz or #JAYLINK_SPEED_ADAPTIVE_CLOCKING for
+ *                  adaptive clocking. Speed of 0 kHz is not allowed and
+ *                  adaptive clocking must only be used if the device has the
+ *                  #JAYLINK_DEV_CAP_ADAPTIVE_CLOCKING capability.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_TIMEOUT A timeout occurred.
+ * @retval JAYLINK_ERR_IO Input/output error.
+ * @retval JAYLINK_ERR Other error conditions.
+ *
+ * @see jaylink_get_speeds()
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_set_speed(struct jaylink_device_handle *devh,
+		uint16_t speed)
+{
+	int ret;
+	struct jaylink_context *ctx;
+	uint8_t buf[3];
+
+	if (!devh || !speed)
+		return JAYLINK_ERR_ARG;
+
+	ctx = devh->dev->ctx;
+	ret = transport_start_write(devh, 3, true);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_start_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	buf[0] = CMD_SET_SPEED;
+	buffer_set_u16(buf, speed, 1);
+
+	ret = transport_write(devh, buf, 3);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	return JAYLINK_OK;
+}
+
+/**
+ * Retrieve target interface speeds.
+ *
+ * The speeds are applicable for the currently selected target interface only
+ * and calculated as follows:
+ *
+ * @par
+ * <tt>speeds = @a freq / n</tt> with <tt>n >= @a div</tt>, where @p n is an
+ * integer
+ *
+ * Assuming, for example, a base frequency @a freq of 4 MHz and a minimum
+ * divider @a div of 4 then the highest possible target interface speed is
+ * 4 MHz / 4 = 1 MHz. The next highest speed is 800 kHz for a divider of 5, and
+ * so on.
+ *
+ * @note This function must only be used if the device has the
+ *       #JAYLINK_DEV_CAP_GET_SPEEDS capability.
+ *
+ * @param[in,out] devh Device handle.
+ * @param[out] speed Speed information on success, and undefined on failure.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_TIMEOUT A timeout occurred.
+ * @retval JAYLINK_ERR_PROTO Protocol violation.
+ * @retval JAYLINK_ERR_IO Input/output error.
+ * @retval JAYLINK_ERR Other error conditions.
+ *
+ * @see jaylink_select_interface()
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_get_speeds(struct jaylink_device_handle *devh,
+		struct jaylink_speed *speed)
+{
+	int ret;
+	struct jaylink_context *ctx;
+	uint8_t buf[6];
+	uint16_t div;
+
+	if (!devh || !speed)
+		return JAYLINK_ERR_ARG;
+
+	ctx = devh->dev->ctx;
+	ret = transport_start_write_read(devh, 1, 6, true);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_start_write_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	buf[0] = CMD_GET_SPEEDS;
+
+	ret = transport_write(devh, buf, 1);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_read(devh, buf, 6);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	div = buffer_get_u16(buf, 4);
+
+	if (!div) {
+		log_err(ctx, "Minimum frequency divider is zero.");
+		return JAYLINK_ERR_PROTO;
+	}
+
+	speed->freq = buffer_get_u32(buf, 0);
+	speed->div = div;
+
+	return JAYLINK_OK;
+}
+
+/**
+ * Select the target interface.
+ *
+ * @note This function must only be used if the device has the
+ *       #JAYLINK_DEV_CAP_SELECT_TIF capability.
+ *
+ * @warning This function may return a value for @p prev_iface which is not
+ *          covered by #jaylink_target_interface.
+ *
+ * @param[in,out] devh Device handle.
+ * @param[in] iface Target interface to select.
+ * @param[out] prev_iface Previously selected target interface on success, and
+ *                        undefined on failure. Can be NULL.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_TIMEOUT A timeout occurred.
+ * @retval JAYLINK_ERR_IO Input/output error.
+ * @retval JAYLINK_ERR Other error conditions.
+ *
+ * @see jaylink_get_available_interfaces()
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_select_interface(struct jaylink_device_handle *devh,
+		enum jaylink_target_interface iface,
+		enum jaylink_target_interface *prev_iface)
+{
+	int ret;
+	struct jaylink_context *ctx;
+	uint8_t buf[4];
+
+	if (!devh)
+		return JAYLINK_ERR_ARG;
+
+	switch (iface) {
+	case JAYLINK_TIF_JTAG:
+	case JAYLINK_TIF_SWD:
+	case JAYLINK_TIF_BDM3:
+	case JAYLINK_TIF_FINE:
+	case JAYLINK_TIF_2W_JTAG_PIC32:
+		break;
+	default:
+		return JAYLINK_ERR_ARG;
+	}
+
+	ctx = devh->dev->ctx;
+	ret = transport_start_write_read(devh, 2, 4, true);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_start_write_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	buf[0] = CMD_SELECT_TIF;
+	buf[1] = iface;
+
+	ret = transport_write(devh, buf, 2);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_read(devh, buf, 4);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	if (prev_iface)
+		*prev_iface = buffer_get_u32(buf, 0);
+
+	return JAYLINK_OK;
+}
+
+/**
+ * Retrieve the available target interfaces.
+ *
+ * The target interfaces are stored in a 32-bit bit field where each individual
+ * bit represents a target interface. A set bit indicates an available target
+ * interface. See #jaylink_target_interface for a description of the target
+ * interfaces and their bit positions.
+ *
+ * @note This function must only be used if the device has the
+ *       #JAYLINK_DEV_CAP_SELECT_TIF capability.
+ *
+ * @param[in,out] devh Device handle.
+ * @param[out] ifaces Target interfaces on success, and undefined on failure.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_TIMEOUT A timeout occurred.
+ * @retval JAYLINK_ERR_IO Input/output error.
+ * @retval JAYLINK_ERR Other error conditions.
+ *
+ * @see jaylink_select_interface()
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_get_available_interfaces(
+		struct jaylink_device_handle *devh, uint32_t *ifaces)
+{
+	int ret;
+	struct jaylink_context *ctx;
+	uint8_t buf[4];
+
+	if (!devh || !ifaces)
+		return JAYLINK_ERR_ARG;
+
+	ctx = devh->dev->ctx;
+	ret = transport_start_write_read(devh, 2, 4, true);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_start_write_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	buf[0] = CMD_SELECT_TIF;
+	buf[1] = TIF_GET_AVAILABLE;
+
+	ret = transport_write(devh, buf, 2);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_read(devh, buf, 4);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	*ifaces = buffer_get_u32(buf, 0);
+
+	return JAYLINK_OK;
+}
+
+/**
+ * Retrieve the selected target interface.
+ *
+ * @note This function must only be used if the device has the
+ *       #JAYLINK_DEV_CAP_SELECT_TIF capability.
+ *
+ * @warning This function may return a value for @p iface which is not covered
+ *          by #jaylink_target_interface.
+ *
+ * @param[in,out] devh Device handle.
+ * @param[out] iface Selected target interface on success, and undefined on
+ *                   failure.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_TIMEOUT A timeout occurred.
+ * @retval JAYLINK_ERR_IO Input/output error.
+ * @retval JAYLINK_ERR Other error conditions.
+ *
+ * @see jaylink_select_interface()
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_get_selected_interface(
+		struct jaylink_device_handle *devh,
+		enum jaylink_target_interface *iface)
+{
+	int ret;
+	struct jaylink_context *ctx;
+	uint8_t buf[4];
+
+	if (!devh || !iface)
+		return JAYLINK_ERR_ARG;
+
+	ctx = devh->dev->ctx;
+	ret = transport_start_write_read(devh, 2, 4, true);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_start_write_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	buf[0] = CMD_SELECT_TIF;
+	buf[1] = TIF_GET_SELECTED;
+
+	ret = transport_write(devh, buf, 2);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	ret = transport_read(devh, buf, 4);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_read() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	*iface = buffer_get_u32(buf, 0);
+
+	return JAYLINK_OK;
+}
+
+/**
+ * Clear the target reset signal.
+ *
+ * @param[in,out] devh Device handle.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_TIMEOUT A timeout occurred.
+ * @retval JAYLINK_ERR_IO Input/output error.
+ * @retval JAYLINK_ERR Other error conditions.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_clear_reset(struct jaylink_device_handle *devh)
+{
+	int ret;
+	struct jaylink_context *ctx;
+	uint8_t buf[1];
+
+	if (!devh)
+		return JAYLINK_ERR_ARG;
+
+	ctx = devh->dev->ctx;
+	ret = transport_start_write(devh, 1, true);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_start_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	buf[0] = CMD_CLEAR_RESET;
+
+	ret = transport_write(devh, buf, 1);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	return JAYLINK_OK;
+}
+
+/**
+ * Set the target reset signal.
+ *
+ * @param[in,out] devh Device handle.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_TIMEOUT A timeout occurred.
+ * @retval JAYLINK_ERR_IO Input/output error.
+ * @retval JAYLINK_ERR Other error conditions.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_set_reset(struct jaylink_device_handle *devh)
+{
+	int ret;
+	struct jaylink_context *ctx;
+	uint8_t buf[1];
+
+	if (!devh)
+		return JAYLINK_ERR_ARG;
+
+	ctx = devh->dev->ctx;
+	ret = transport_start_write(devh, 1, true);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_start_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	buf[0] = CMD_SET_RESET;
+
+	ret = transport_write(devh, buf, 1);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	return JAYLINK_OK;
+}
+
+/**
+ * Set the target power supply.
+ *
+ * If enabled, the target is supplied with 5 V from pin 19 of the 20-pin
+ * JTAG / SWD connector.
+ *
+ * @note This function must only be used if the device has the
+ *       #JAYLINK_DEV_CAP_SET_TARGET_POWER capability.
+ *
+ * @param[in,out] devh Device handle.
+ * @param[in] enable Determines whether to enable or disable the target power
+ *                   supply.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_TIMEOUT A timeout occurred.
+ * @retval JAYLINK_ERR_IO Input/output error.
+ * @retval JAYLINK_ERR Other error conditions.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_set_target_power(struct jaylink_device_handle *devh,
+		bool enable)
+{
+	int ret;
+	struct jaylink_context *ctx;
+	uint8_t buf[2];
+
+	if (!devh)
+		return JAYLINK_ERR_ARG;
+
+	ctx = devh->dev->ctx;
+	ret = transport_start_write(devh, 2, true);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_start_wrte() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	buf[0] = CMD_SET_TARGET_POWER;
+	buf[1] = enable;
+
+	ret = transport_write(devh, buf, 2);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "transport_write() failed: %s.",
+			jaylink_strerror(ret));
+		return ret;
+	}
+
+	return JAYLINK_OK;
+}
diff --git a/src/jtag/drivers/libjaylink/libjaylink/transport.c b/src/jtag/drivers/libjaylink/libjaylink/transport.c
new file mode 100644
index 0000000..0c276b3
--- /dev/null
+++ b/src/jtag/drivers/libjaylink/libjaylink/transport.c
@@ -0,0 +1,309 @@
+/*
+ * This file is part of the libjaylink project.
+ *
+ * Copyright (C) 2014-2015 Marc Schink <jaylink-dev@marcschink.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdlib.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <string.h>
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+#include "libjaylink.h"
+#include "libjaylink-internal.h"
+
+/**
+ * @file
+ *
+ * Transport abstraction layer.
+ */
+
+/**
+ * Open a device.
+ *
+ * This function must be called before any other function of the transport
+ * abstraction layer for the given device handle is called.
+ *
+ * @param[in,out] devh Device handle.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_IO Input/output error.
+ * @retval JAYLINK_ERR Other error conditions.
+ */
+JAYLINK_PRIV int transport_open(struct jaylink_device_handle *devh)
+{
+	int ret;
+
+	switch (devh->dev->iface) {
+#ifdef HAVE_LIBUSB
+	case JAYLINK_HIF_USB:
+		ret = transport_usb_open(devh);
+		break;
+#endif
+	case JAYLINK_HIF_TCP:
+		ret = transport_tcp_open(devh);
+		break;
+	default:
+		log_err(devh->dev->ctx, "BUG: Invalid host interface: %u.",
+			devh->dev->iface);
+		return JAYLINK_ERR;
+	}
+
+	return ret;
+}
+
+/**
+ * Close a device.
+ *
+ * After this function has been called no other function of the transport
+ * abstraction layer for the given device handle must be called.
+ *
+ * @param[in,out] devh Device handle.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR Other error conditions.
+ */
+JAYLINK_PRIV int transport_close(struct jaylink_device_handle *devh)
+{
+	int ret;
+
+	switch (devh->dev->iface) {
+#ifdef HAVE_LIBUSB
+	case JAYLINK_HIF_USB:
+		ret = transport_usb_close(devh);
+		break;
+#endif
+	case JAYLINK_HIF_TCP:
+		ret = transport_tcp_close(devh);
+		break;
+	default:
+		log_err(devh->dev->ctx, "BUG: Invalid host interface: %u.",
+			devh->dev->iface);
+		return JAYLINK_ERR;
+	}
+
+	return ret;
+}
+
+/**
+ * Start a write operation for a device.
+ *
+ * The data of a write operation must be written with at least one call of
+ * transport_write(). It is required that all data of a write operation is
+ * written before an other write and/or read operation is started.
+ *
+ * @param[in,out] devh Device handle.
+ * @param[in] length Number of bytes of the write operation.
+ * @param[in] has_command Determines whether the data of the write operation
+ *                        contains the protocol command.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ */
+JAYLINK_PRIV int transport_start_write(struct jaylink_device_handle *devh,
+		size_t length, bool has_command)
+{
+	int ret;
+
+	switch (devh->dev->iface) {
+#ifdef HAVE_LIBUSB
+	case JAYLINK_HIF_USB:
+		ret = transport_usb_start_write(devh, length, has_command);
+		break;
+#endif
+	case JAYLINK_HIF_TCP:
+		ret = transport_tcp_start_write(devh, length, has_command);
+		break;
+	default:
+		log_err(devh->dev->ctx, "BUG: Invalid host interface: %u.",
+			devh->dev->iface);
+		return JAYLINK_ERR;
+	}
+
+	return ret;
+}
+
+/**
+ * Start a read operation for a device.
+ *
+ * The data of a read operation must be read with at least one call of
+ * transport_read(). It is required that all data of a read operation is read
+ * before an other write and/or read operation is started.
+ *
+ * @param[in,out] devh Device handle.
+ * @param[in] length Number of bytes of the read operation.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ */
+JAYLINK_PRIV int transport_start_read(struct jaylink_device_handle *devh,
+		size_t length)
+{
+	int ret;
+
+	switch (devh->dev->iface) {
+#ifdef HAVE_LIBUSB
+	case JAYLINK_HIF_USB:
+		ret = transport_usb_start_read(devh, length);
+		break;
+#endif
+	case JAYLINK_HIF_TCP:
+		ret = transport_tcp_start_read(devh, length);
+		break;
+	default:
+		log_err(devh->dev->ctx, "BUG: Invalid host interface: %u.",
+			devh->dev->iface);
+		return JAYLINK_ERR;
+	}
+
+	return ret;
+}
+
+/**
+ * Start a write and read operation for a device.
+ *
+ * This function starts a write and read operation as the consecutive call of
+ * transport_start_write() and transport_start_read() but has a different
+ * meaning from the protocol perspective and can therefore not be replaced by
+ * these functions and vice versa.
+ *
+ * @note The write operation must be completed first before the read operation
+ *       must be processed.
+ *
+ * @param[in,out] devh Device handle.
+ * @param[in] write_length Number of bytes of the write operation.
+ * @param[in] read_length Number of bytes of the read operation.
+ * @param[in] has_command Determines whether the data of the write operation
+ *                        contains the protocol command.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ */
+JAYLINK_PRIV int transport_start_write_read(struct jaylink_device_handle *devh,
+		size_t write_length, size_t read_length, bool has_command)
+{
+	int ret;
+
+	switch (devh->dev->iface) {
+#ifdef HAVE_LIBUSB
+	case JAYLINK_HIF_USB:
+		ret = transport_usb_start_write_read(devh, write_length,
+			read_length, has_command);
+		break;
+#endif
+	case JAYLINK_HIF_TCP:
+		ret = transport_tcp_start_write_read(devh, write_length,
+			read_length, has_command);
+		break;
+	default:
+		log_err(devh->dev->ctx, "BUG: Invalid host interface: %u.",
+			devh->dev->iface);
+		return JAYLINK_ERR;
+	}
+
+	return ret;
+}
+
+/**
+ * Write data to a device.
+ *
+ * Before this function is used transport_start_write() or
+ * transport_start_write_read() must be called to start a write operation. The
+ * total number of written bytes must not exceed the number of bytes of the
+ * write operation.
+ *
+ * @note A write operation will be performed and the data will be sent to the
+ *       device when the number of written bytes reaches the number of bytes of
+ *       the write operation. Before that the data will be written into a
+ *       buffer.
+ *
+ * @param[in,out] devh Device handle.
+ * @param[in] buffer Buffer to write data from.
+ * @param[in] length Number of bytes to write.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_TIMEOUT A timeout occurred.
+ * @retval JAYLINK_ERR_IO Input/output error.
+ * @retval JAYLINK_ERR Other error conditions.
+ */
+JAYLINK_PRIV int transport_write(struct jaylink_device_handle *devh,
+		const uint8_t *buffer, size_t length)
+{
+	int ret;
+
+	switch (devh->dev->iface) {
+#ifdef HAVE_LIBUSB
+	case JAYLINK_HIF_USB:
+		ret = transport_usb_write(devh, buffer, length);
+		break;
+#endif
+	case JAYLINK_HIF_TCP:
+		ret = transport_tcp_write(devh, buffer, length);
+		break;
+	default:
+		log_err(devh->dev->ctx, "BUG: Invalid host interface: %u.",
+			devh->dev->iface);
+		return JAYLINK_ERR;
+	}
+
+	return ret;
+}
+
+/**
+ * Read data from a device.
+ *
+ * Before this function is used transport_start_read() or
+ * transport_start_write_read() must be called to start a read operation. The
+ * total number of read bytes must not exceed the number of bytes of the read
+ * operation.
+ *
+ * @param[in,out] devh Device handle.
+ * @param[out] buffer Buffer to read data into on success. Its content is
+ *                    undefined on failure.
+ * @param[in] length Number of bytes to read.
+ *
+ * @retval JAYLINK_OK Success.
+ * @retval JAYLINK_ERR_ARG Invalid arguments.
+ * @retval JAYLINK_ERR_TIMEOUT A timeout occurred.
+ * @retval JAYLINK_ERR_IO Input/output error.
+ * @retval JAYLINK_ERR Other error conditions.
+ */
+JAYLINK_PRIV int transport_read(struct jaylink_device_handle *devh,
+		uint8_t *buffer, size_t length)
+{
+	int ret;
+
+	switch (devh->dev->iface) {
+#ifdef HAVE_LIBUSB
+	case JAYLINK_HIF_USB:
+		ret = transport_usb_read(devh, buffer, length);
+		break;
+#endif
+	case JAYLINK_HIF_TCP:
+		ret = transport_tcp_read(devh, buffer, length);
+		break;
+	default:
+		log_err(devh->dev->ctx, "BUG: Invalid host interface: %u.",
+			devh->dev->iface);
+		return JAYLINK_ERR;
+	}
+
+	return ret;
+}
diff --git a/src/jtag/drivers/libjaylink/libjaylink/transport_tcp.c b/src/jtag/drivers/libjaylink/libjaylink/transport_tcp.c
new file mode 100644
index 0000000..7e10179
--- /dev/null
+++ b/src/jtag/drivers/libjaylink/libjaylink/transport_tcp.c
@@ -0,0 +1,601 @@
+/*
+ * This file is part of the libjaylink project.
+ *
+ * Copyright (C) 2015-2017 Marc Schink <jaylink-dev@marcschink.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <sys/types.h>
+
+#ifdef _WIN32
+#include <winsock2.h>
+#include <ws2tcpip.h>
+#else
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netdb.h>
+#include <netinet/in.h>
+#endif
+
+#include "libjaylink.h"
+#include "libjaylink-internal.h"
+
+/**
+ * @file
+ *
+ * Transport abstraction layer (TCP/IP).
+ */
+
+/** @cond PRIVATE */
+#define CMD_SERVER		0x00
+#define CMD_CLIENT		0x07
+
+/**
+ * Response status code indicating that the maximum number of simultaneous
+ * connections on the device has been reached.
+ */
+#define RESP_MAX_CONNECTIONS	0xfe
+
+/** Buffer size in bytes. */
+#define BUFFER_SIZE	2048
+
+/** Timeout of a receive operation in milliseconds. */
+#define RECV_TIMEOUT	5000
+/** Timeout of a send operation in milliseconds. */
+#define SEND_TIMEOUT	5000
+
+/** String of the port number for the J-Link TCP/IP protocol. */
+#define PORT_STRING	"19020"
+
+/** Size of the server's hello message in bytes. */
+#define SERVER_HELLO_SIZE	4
+/**
+ * Maximum length of the server name including trailing null-terminator in
+ * bytes.
+ */
+#define SERVER_NAME_MAX_LENGTH	256
+/** @endcond */
+
+static int initialize_handle(struct jaylink_device_handle *devh)
+{
+	struct jaylink_context *ctx;
+
+	ctx = devh->dev->ctx;
+
+	devh->buffer_size = BUFFER_SIZE;
+	devh->buffer = malloc(devh->buffer_size);
+
+	if (!devh->buffer) {
+		log_err(ctx, "Transport buffer malloc failed.");
+		return JAYLINK_ERR_MALLOC;
+	}
+
+	devh->read_length = 0;
+	devh->bytes_available = 0;
+	devh->read_pos = 0;
+
+	devh->write_length = 0;
+	devh->write_pos = 0;
+
+	return JAYLINK_OK;
+}
+
+static void cleanup_handle(struct jaylink_device_handle *devh)
+{
+	free(devh->buffer);
+}
+
+static int _recv(struct jaylink_device_handle *devh, uint8_t *buffer,
+		size_t length)
+{
+	struct jaylink_context *ctx;
+	size_t tmp;
+
+	ctx = devh->dev->ctx;
+
+	while (length > 0) {
+		tmp = length;
+
+		if (!socket_recv(devh->sock, buffer, &tmp, 0)) {
+			log_err(ctx, "Failed to receive data from device.");
+			return JAYLINK_ERR_IO;
+		} else if (!tmp) {
+			log_err(ctx, "Failed to receive data from device: "
+				"remote connection closed.");
+			return JAYLINK_ERR_IO;
+		}
+
+		buffer += tmp;
+		length -= tmp;
+
+		log_dbgio(ctx, "Received %zu bytes from device.", tmp);
+	}
+
+	return JAYLINK_OK;
+}
+
+static int handle_server_hello(struct jaylink_device_handle *devh)
+{
+	int ret;
+	struct jaylink_context *ctx;
+	uint8_t buf[SERVER_HELLO_SIZE];
+	char name[SERVER_NAME_MAX_LENGTH];
+	uint16_t proto_version;
+	size_t length;
+
+	ctx = devh->dev->ctx;
+
+	ret = _recv(devh, buf, sizeof(buf));
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "Failed to receive hello message.");
+		return ret;
+	}
+
+	if (buf[0] == RESP_MAX_CONNECTIONS) {
+		log_err(ctx, "Maximum number of connections reached.");
+		return JAYLINK_ERR;
+	}
+
+	if (buf[0] != CMD_SERVER) {
+		log_err(ctx, "Invalid hello message received.");
+		return JAYLINK_ERR_PROTO;
+	}
+
+	proto_version = buffer_get_u16(buf, 1);
+
+	log_dbg(ctx, "Protocol version: 0x%04x.", proto_version);
+
+	length = buf[3];
+	ret = _recv(devh, (uint8_t *)name, length);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "Failed to receive server name.");
+		return ret;
+	}
+
+	name[length] = '\0';
+
+	log_dbg(ctx, "Server name: %s.", name);
+
+	return JAYLINK_OK;
+}
+
+static int set_socket_timeouts(struct jaylink_device_handle *devh)
+{
+	struct jaylink_context *ctx;
+
+	ctx = devh->dev->ctx;
+#ifdef _WIN32
+	DWORD timeout;
+
+	timeout = RECV_TIMEOUT;
+
+	if (!socket_set_option(devh->sock, SOL_SOCKET, SO_RCVTIMEO, &timeout,
+			sizeof(timeout))) {
+		log_err(ctx, "Failed to set socket receive timeout.");
+		return JAYLINK_ERR;
+	}
+
+	timeout = SEND_TIMEOUT;
+
+	if (!socket_set_option(devh->sock, SOL_SOCKET, SO_SNDTIMEO, &timeout,
+			sizeof(timeout))) {
+		log_err(ctx, "Failed to set socket send timeout.");
+		return JAYLINK_ERR;
+	}
+#else
+	struct timeval timeout;
+
+	timeout.tv_sec = RECV_TIMEOUT / 1000;
+	timeout.tv_usec = (RECV_TIMEOUT % 1000) * 1000;
+
+	if (!socket_set_option(devh->sock, SOL_SOCKET, SO_RCVTIMEO, &timeout,
+			sizeof(struct timeval))) {
+		log_err(ctx, "Failed to set socket receive timeout.");
+		return JAYLINK_ERR;
+	}
+
+	timeout.tv_sec = SEND_TIMEOUT / 1000;
+	timeout.tv_usec = (SEND_TIMEOUT % 1000) * 1000;
+
+	if (!socket_set_option(devh->sock, SOL_SOCKET, SO_SNDTIMEO, &timeout,
+			sizeof(struct timeval))) {
+		log_err(ctx, "Failed to set socket send timeout.");
+		return JAYLINK_ERR;
+	}
+#endif
+	return JAYLINK_OK;
+}
+
+JAYLINK_PRIV int transport_tcp_open(struct jaylink_device_handle *devh)
+{
+	int ret;
+	struct jaylink_context *ctx;
+	struct jaylink_device *dev;
+	struct addrinfo hints;
+	struct addrinfo *info;
+	struct addrinfo *rp;
+	int sock;
+
+	dev = devh->dev;
+	ctx = dev->ctx;
+
+	log_dbg(ctx, "Trying to open device (IPv4 address = %s).",
+		dev->ipv4_address);
+
+	ret = initialize_handle(devh);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "Initialize device handle failed.");
+		return ret;
+	}
+
+	memset(&hints, 0, sizeof(struct addrinfo));
+	hints.ai_family = AF_INET;
+	hints.ai_socktype = SOCK_STREAM;
+	hints.ai_protocol = IPPROTO_TCP;
+
+	ret = getaddrinfo(dev->ipv4_address, PORT_STRING, &hints, &info);
+
+	if (ret != 0) {
+		log_err(ctx, "Address lookup failed.");
+		cleanup_handle(devh);
+		return JAYLINK_ERR;
+	}
+
+	sock = -1;
+
+	for (rp = info; rp != NULL; rp = rp->ai_next) {
+		sock = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol);
+
+		if (sock < 0)
+			continue;
+
+		if (!connect(sock, info->ai_addr, info->ai_addrlen))
+			break;
+
+		socket_close(sock);
+		sock = -1;
+	}
+
+	freeaddrinfo(info);
+
+	if (sock < 0) {
+		log_err(ctx, "Failed to open device.");
+		cleanup_handle(devh);
+		return JAYLINK_ERR;
+	}
+
+	log_dbg(ctx, "Device opened successfully.");
+
+	devh->sock = sock;
+	ret = set_socket_timeouts(devh);
+
+	if (ret != JAYLINK_OK) {
+		socket_close(sock);
+		cleanup_handle(devh);
+		return ret;
+	}
+
+	ret = handle_server_hello(devh);
+
+	if (ret != JAYLINK_OK) {
+		socket_close(sock);
+		cleanup_handle(devh);
+		return ret;
+	}
+
+	return JAYLINK_OK;
+}
+
+JAYLINK_PRIV int transport_tcp_close(struct jaylink_device_handle *devh)
+{
+	struct jaylink_context *ctx;
+
+	ctx = devh->dev->ctx;
+
+	log_dbg(ctx, "Closing device (IPv4 address = %s).",
+		devh->dev->ipv4_address);
+
+	cleanup_handle(devh);
+
+	log_dbg(ctx, "Device closed successfully.");
+
+	return JAYLINK_OK;
+}
+
+JAYLINK_PRIV int transport_tcp_start_write(struct jaylink_device_handle *devh,
+		size_t length, bool has_command)
+{
+	struct jaylink_context *ctx;
+
+	if (!length)
+		return JAYLINK_ERR_ARG;
+
+	ctx = devh->dev->ctx;
+
+	log_dbgio(ctx, "Starting write operation (length = %zu bytes).",
+		length);
+
+	if (devh->write_pos > 0)
+		log_warn(ctx, "Last write operation left %zu bytes in the "
+			"buffer.", devh->write_pos);
+
+	if (devh->write_length > 0)
+		log_warn(ctx, "Last write operation was not performed.");
+
+	devh->write_length = length;
+	devh->write_pos = 0;
+
+	if (has_command) {
+		devh->buffer[0] = CMD_CLIENT;
+		devh->write_pos++;
+	}
+
+	return JAYLINK_OK;
+}
+
+JAYLINK_PRIV int transport_tcp_start_read(struct jaylink_device_handle *devh,
+		size_t length)
+{
+	struct jaylink_context *ctx;
+
+	if (!length)
+		return JAYLINK_ERR_ARG;
+
+	ctx = devh->dev->ctx;
+
+	log_dbgio(ctx, "Starting read operation (length = %zu bytes).",
+		length);
+
+	if (devh->bytes_available > 0)
+		log_dbg(ctx, "Last read operation left %zu bytes in the "
+			"buffer.", devh->bytes_available);
+
+	if (devh->read_length > 0)
+		log_warn(ctx, "Last read operation left %zu bytes.",
+			devh->read_length);
+
+	devh->read_length = length;
+
+	return JAYLINK_OK;
+}
+
+JAYLINK_PRIV int transport_tcp_start_write_read(
+		struct jaylink_device_handle *devh, size_t write_length,
+		size_t read_length, bool has_command)
+{
+	struct jaylink_context *ctx;
+
+	if (!read_length || !write_length)
+		return JAYLINK_ERR_ARG;
+
+	ctx = devh->dev->ctx;
+
+	log_dbgio(ctx, "Starting write / read operation (length = "
+		"%zu / %zu bytes).", write_length, read_length);
+
+	if (devh->write_pos > 0)
+		log_warn(ctx, "Last write operation left %zu bytes in the "
+			"buffer.", devh->write_pos);
+
+	if (devh->write_length > 0)
+		log_warn(ctx, "Last write operation was not performed.");
+
+	if (devh->bytes_available > 0)
+		log_warn(ctx, "Last read operation left %zu bytes in the "
+			"buffer.", devh->bytes_available);
+
+	if (devh->read_length > 0)
+		log_warn(ctx, "Last read operation left %zu bytes.",
+			devh->read_length);
+
+	devh->write_length = write_length;
+	devh->write_pos = 0;
+
+	if (has_command) {
+		devh->buffer[0] = CMD_CLIENT;
+		devh->write_pos++;
+	}
+
+	devh->read_length = read_length;
+	devh->bytes_available = 0;
+	devh->read_pos = 0;
+
+	return JAYLINK_OK;
+}
+
+static int _send(struct jaylink_device_handle *devh, const uint8_t *buffer,
+		size_t length)
+{
+	struct jaylink_context *ctx;
+	size_t tmp;
+
+	ctx = devh->dev->ctx;
+
+	while (length > 0) {
+		tmp = length;
+
+		if (!socket_send(devh->sock, buffer, &tmp, 0)) {
+			log_err(ctx, "Failed to send data to device.");
+			return JAYLINK_ERR_IO;
+		}
+
+		buffer += tmp;
+		length -= tmp;
+
+		log_dbgio(ctx, "Sent %zu bytes to device.", tmp);
+	}
+
+	return JAYLINK_OK;
+}
+
+static bool adjust_buffer(struct jaylink_device_handle *devh, size_t size)
+{
+	struct jaylink_context *ctx;
+	uint8_t *buffer;
+	size_t num;
+
+	ctx = devh->dev->ctx;
+
+	/* Adjust buffer size to a multiple of BUFFER_SIZE bytes. */
+	num = size / BUFFER_SIZE;
+
+	if (size % BUFFER_SIZE > 0)
+		num++;
+
+	size = num * BUFFER_SIZE;
+	buffer = realloc(devh->buffer, size);
+
+	if (!buffer) {
+		log_err(ctx, "Failed to adjust buffer size to %zu bytes.",
+			size);
+		return false;
+	}
+
+	devh->buffer = buffer;
+	devh->buffer_size = size;
+
+	log_dbg(ctx, "Adjusted buffer size to %zu bytes.", size);
+
+	return true;
+}
+
+JAYLINK_PRIV int transport_tcp_write(struct jaylink_device_handle *devh,
+		const uint8_t *buffer, size_t length)
+{
+	int ret;
+	struct jaylink_context *ctx;
+	size_t tmp;
+
+	ctx = devh->dev->ctx;
+
+	if (length > devh->write_length) {
+		log_err(ctx, "Requested to write %zu bytes but only %zu bytes "
+			"are expected for the write operation.", length,
+			devh->write_length);
+		return JAYLINK_ERR_ARG;
+	}
+
+	/*
+	 * Store data in the buffer if the expected number of bytes for the
+	 * write operation is not reached.
+	 */
+	if (length < devh->write_length) {
+		if (devh->write_pos + length > devh->buffer_size) {
+			if (!adjust_buffer(devh, devh->write_pos + length))
+				return JAYLINK_ERR_MALLOC;
+		}
+
+		memcpy(devh->buffer + devh->write_pos, buffer, length);
+
+		devh->write_length -= length;
+		devh->write_pos += length;
+
+		log_dbgio(ctx, "Wrote %zu bytes into buffer.", length);
+		return JAYLINK_OK;
+	}
+
+	/*
+	 * Expected number of bytes for this write operation is reached and
+	 * therefore the write operation will be performed.
+	 */
+	devh->write_length = 0;
+
+	/* Send data directly to the device if the buffer is empty. */
+	if (!devh->write_pos)
+		return _send(devh, buffer, length);
+
+	tmp = MIN(length, devh->buffer_size - devh->write_pos);
+
+	/*
+	 * Fill up the internal buffer in order to reduce the number of
+	 * messages sent to the device for performance reasons.
+	 */
+	memcpy(devh->buffer + devh->write_pos, buffer, tmp);
+
+	length -= tmp;
+	buffer += tmp;
+
+	log_dbgio(ctx, "Buffer filled up with %zu bytes.", tmp);
+
+	ret = _send(devh, devh->buffer, devh->write_pos + tmp);
+
+	devh->write_pos = 0;
+
+	if (ret != JAYLINK_OK)
+		return ret;
+
+	if (!length)
+		return JAYLINK_OK;
+
+	return _send(devh, buffer, length);
+}
+
+JAYLINK_PRIV int transport_tcp_read(struct jaylink_device_handle *devh,
+		uint8_t *buffer, size_t length)
+{
+	int ret;
+	struct jaylink_context *ctx;
+
+	ctx = devh->dev->ctx;
+
+	if (length > devh->read_length) {
+		log_err(ctx, "Requested to read %zu bytes but only %zu bytes "
+			"are expected for the read operation.", length,
+			devh->read_length);
+		return JAYLINK_ERR_ARG;
+	}
+
+	if (length <= devh->bytes_available) {
+		memcpy(buffer, devh->buffer + devh->read_pos, length);
+
+		devh->read_length -= length;
+		devh->bytes_available -= length;
+		devh->read_pos += length;
+
+		log_dbgio(ctx, "Read %zu bytes from buffer.", length);
+		return JAYLINK_OK;
+	}
+
+	if (devh->bytes_available) {
+		memcpy(buffer, devh->buffer + devh->read_pos,
+			devh->bytes_available);
+
+		buffer += devh->bytes_available;
+		length -= devh->bytes_available;
+		devh->read_length -= devh->bytes_available;
+
+		log_dbgio(ctx, "Read %zu bytes from buffer to flush it.",
+			devh->bytes_available);
+
+		devh->bytes_available = 0;
+		devh->read_pos = 0;
+	}
+
+	ret = _recv(devh, buffer, length);
+
+	if (ret != JAYLINK_OK)
+		return ret;
+
+	devh->read_length -= length;
+
+	return JAYLINK_OK;
+}
diff --git a/src/jtag/drivers/libjaylink/libjaylink/transport_usb.c b/src/jtag/drivers/libjaylink/libjaylink/transport_usb.c
new file mode 100644
index 0000000..dfe9eac
--- /dev/null
+++ b/src/jtag/drivers/libjaylink/libjaylink/transport_usb.c
@@ -0,0 +1,620 @@
+/*
+ * This file is part of the libjaylink project.
+ *
+ * Copyright (C) 2014-2016 Marc Schink <jaylink-dev@marcschink.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdlib.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <string.h>
+
+#include "libjaylink.h"
+#include "libjaylink-internal.h"
+
+/**
+ * @file
+ *
+ * Transport abstraction layer (USB).
+ */
+
+/** Timeout of an USB transfer in milliseconds. */
+#define USB_TIMEOUT	1000
+
+/**
+ * Number of consecutive timeouts before an USB transfer will be treated as
+ * timed out.
+ */
+#define NUM_TIMEOUTS	2
+
+/** Chunk size in bytes in which data is transferred. */
+#define CHUNK_SIZE	2048
+
+static int initialize_handle(struct jaylink_device_handle *devh)
+{
+	int ret;
+	struct jaylink_context *ctx;
+	struct libusb_config_descriptor *config;
+	const struct libusb_interface *interface;
+	const struct libusb_interface_descriptor *desc;
+	const struct libusb_endpoint_descriptor *epdesc;
+	bool found_interface;
+	bool found_endpoint_in;
+	bool found_endpoint_out;
+	uint8_t i;
+
+	ctx = devh->dev->ctx;
+	devh->interface_number = 0;
+
+	/*
+	 * Retrieve active configuration descriptor to determine the endpoints
+	 * for the interface number of the device.
+	 */
+	ret = libusb_get_active_config_descriptor(devh->dev->usb_dev, &config);
+
+	if (ret != LIBUSB_SUCCESS) {
+		log_err(ctx, "Failed to get configuration descriptor: %s.",
+			libusb_error_name(ret));
+		return JAYLINK_ERR;
+	}
+
+	found_interface = false;
+
+	for (i = 0; i < config->bNumInterfaces; i++) {
+		interface = &config->interface[i];
+		desc = &interface->altsetting[0];
+
+		if (desc->bInterfaceClass != LIBUSB_CLASS_VENDOR_SPEC)
+			continue;
+
+		if (desc->bInterfaceSubClass != LIBUSB_CLASS_VENDOR_SPEC)
+			continue;
+
+		if (desc->bNumEndpoints < 2)
+			continue;
+
+		found_interface = true;
+		devh->interface_number = i;
+		break;
+	}
+
+	if (!found_interface) {
+		log_err(ctx, "No suitable interface found.");
+		libusb_free_config_descriptor(config);
+		return JAYLINK_ERR;
+	}
+
+	found_endpoint_in = false;
+	found_endpoint_out = false;
+
+	for (i = 0; i < desc->bNumEndpoints; i++) {
+		epdesc = &desc->endpoint[i];
+
+		if (epdesc->bEndpointAddress & LIBUSB_ENDPOINT_IN) {
+			devh->endpoint_in = epdesc->bEndpointAddress;
+			found_endpoint_in = true;
+		} else {
+			devh->endpoint_out = epdesc->bEndpointAddress;
+			found_endpoint_out = true;
+		}
+	}
+
+	libusb_free_config_descriptor(config);
+
+	if (!found_endpoint_in) {
+		log_err(ctx, "Interface IN endpoint not found.");
+		return JAYLINK_ERR;
+	}
+
+	if (!found_endpoint_out) {
+		log_err(ctx, "Interface OUT endpoint not found.");
+		return JAYLINK_ERR;
+	}
+
+	log_dbg(ctx, "Using endpoint %02x (IN) and %02x (OUT).",
+		devh->endpoint_in, devh->endpoint_out);
+
+	/* Buffer size must be a multiple of CHUNK_SIZE bytes. */
+	devh->buffer_size = CHUNK_SIZE;
+	devh->buffer = malloc(devh->buffer_size);
+
+	if (!devh->buffer) {
+		log_err(ctx, "Transport buffer malloc failed.");
+		return JAYLINK_ERR_MALLOC;
+	}
+
+	devh->read_length = 0;
+	devh->bytes_available = 0;
+	devh->read_pos = 0;
+
+	devh->write_length = 0;
+	devh->write_pos = 0;
+
+	return JAYLINK_OK;
+}
+
+static void cleanup_handle(struct jaylink_device_handle *devh)
+{
+	free(devh->buffer);
+}
+
+JAYLINK_PRIV int transport_usb_open(struct jaylink_device_handle *devh)
+{
+	int ret;
+	struct jaylink_device *dev;
+	struct jaylink_context *ctx;
+	struct libusb_device_handle *usb_devh;
+
+	dev = devh->dev;
+	ctx = dev->ctx;
+
+	log_dbg(ctx, "Trying to open device (bus:address = %03u:%03u).",
+		libusb_get_bus_number(dev->usb_dev),
+		libusb_get_device_address(dev->usb_dev));
+
+	ret = initialize_handle(devh);
+
+	if (ret != JAYLINK_OK) {
+		log_err(ctx, "Initialize device handle failed.");
+		return ret;
+	}
+
+	ret = libusb_open(dev->usb_dev, &usb_devh);
+
+	if (ret != LIBUSB_SUCCESS) {
+		log_err(ctx, "Failed to open device: %s.",
+			libusb_error_name(ret));
+		cleanup_handle(devh);
+		return JAYLINK_ERR;
+	}
+
+	ret = libusb_claim_interface(usb_devh, devh->interface_number);
+
+	if (ret != LIBUSB_SUCCESS) {
+		log_err(ctx, "Failed to claim interface: %s.",
+			libusb_error_name(ret));
+		cleanup_handle(devh);
+		libusb_close(usb_devh);
+		return JAYLINK_ERR;
+	}
+
+	log_dbg(ctx, "Device opened successfully.");
+
+	devh->usb_devh = usb_devh;
+
+	return JAYLINK_OK;
+}
+
+JAYLINK_PRIV int transport_usb_close(struct jaylink_device_handle *devh)
+{
+	int ret;
+	struct jaylink_device *dev;
+	struct jaylink_context *ctx;
+
+	dev = devh->dev;
+	ctx = dev->ctx;
+
+	log_dbg(ctx, "Closing device (bus:address = %03u:%03u).",
+		libusb_get_bus_number(dev->usb_dev),
+		libusb_get_device_address(dev->usb_dev));
+
+	ret = libusb_release_interface(devh->usb_devh, devh->interface_number);
+
+	libusb_close(devh->usb_devh);
+	cleanup_handle(devh);
+
+	if (ret != LIBUSB_SUCCESS) {
+		log_err(ctx, "Failed to release interface: %s.",
+			libusb_error_name(ret));
+		return JAYLINK_ERR;
+	}
+
+	log_dbg(ctx, "Device closed successfully.");
+
+	return JAYLINK_OK;
+}
+
+JAYLINK_PRIV int transport_usb_start_write(struct jaylink_device_handle *devh,
+		size_t length, bool has_command)
+{
+	struct jaylink_context *ctx;
+
+	(void)has_command;
+
+	if (!length)
+		return JAYLINK_ERR_ARG;
+
+	ctx = devh->dev->ctx;
+
+	log_dbgio(ctx, "Starting write operation (length = %zu bytes).", length);
+
+	if (devh->write_pos > 0)
+		log_warn(ctx, "Last write operation left %zu bytes in the "
+			"buffer.", devh->write_pos);
+
+	if (devh->write_length > 0)
+		log_warn(ctx, "Last write operation was not performed.");
+
+	devh->write_length = length;
+	devh->write_pos = 0;
+
+	return JAYLINK_OK;
+}
+
+JAYLINK_PRIV int transport_usb_start_read(struct jaylink_device_handle *devh,
+		size_t length)
+{
+	struct jaylink_context *ctx;
+
+	if (!length)
+		return JAYLINK_ERR_ARG;
+
+	ctx = devh->dev->ctx;
+
+	log_dbgio(ctx, "Starting read operation (length = %zu bytes).",
+		length);
+
+	if (devh->bytes_available > 0)
+		log_dbg(ctx, "Last read operation left %zu bytes in the "
+			"buffer.", devh->bytes_available);
+
+	if (devh->read_length > 0)
+		log_warn(ctx, "Last read operation left %zu bytes.",
+			devh->read_length);
+
+	devh->read_length = length;
+
+	return JAYLINK_OK;
+}
+
+JAYLINK_PRIV int transport_usb_start_write_read(
+		struct jaylink_device_handle *devh, size_t write_length,
+		size_t read_length, bool has_command)
+{
+	struct jaylink_context *ctx;
+
+	(void)has_command;
+
+	if (!read_length || !write_length)
+		return JAYLINK_ERR_ARG;
+
+	ctx = devh->dev->ctx;
+
+	log_dbgio(ctx, "Starting write / read operation (length = "
+		"%zu / %zu bytes).", write_length, read_length);
+
+	if (devh->write_pos > 0)
+		log_warn(ctx, "Last write operation left %zu bytes in the "
+			"buffer.", devh->write_pos);
+
+	if (devh->write_length > 0)
+		log_warn(ctx, "Last write operation was not performed.");
+
+	if (devh->bytes_available > 0)
+		log_warn(ctx, "Last read operation left %zu bytes in the "
+			"buffer.", devh->bytes_available);
+
+	if (devh->read_length > 0)
+		log_warn(ctx, "Last read operation left %zu bytes.",
+			devh->read_length);
+
+	devh->write_length = write_length;
+	devh->write_pos = 0;
+
+	devh->read_length = read_length;
+	devh->bytes_available = 0;
+	devh->read_pos = 0;
+
+	return JAYLINK_OK;
+}
+
+static int usb_recv(struct jaylink_device_handle *devh, uint8_t *buffer,
+		size_t *length)
+{
+	int ret;
+	struct jaylink_context *ctx;
+	unsigned int tries;
+	int transferred;
+
+	ctx = devh->dev->ctx;
+
+	tries = NUM_TIMEOUTS;
+	transferred = 0;
+
+	while (tries > 0 && !transferred) {
+		/* Always request CHUNK_SIZE bytes from the device. */
+		ret = libusb_bulk_transfer(devh->usb_devh, devh->endpoint_in,
+			(unsigned char *)buffer, CHUNK_SIZE, &transferred,
+			USB_TIMEOUT);
+
+		if (ret == LIBUSB_ERROR_TIMEOUT) {
+			log_warn(ctx, "Failed to receive data from "
+				"device: %s.", libusb_error_name(ret));
+			tries--;
+			continue;
+		} else if (ret != LIBUSB_SUCCESS) {
+			log_err(ctx, "Failed to receive data from "
+				"device: %s.", libusb_error_name(ret));
+			return JAYLINK_ERR;
+		}
+
+		log_dbgio(ctx, "Received %i bytes from device.", transferred);
+	}
+
+	/* Ignore a possible timeout if at least one byte was received. */
+	if (transferred > 0) {
+		*length = transferred;
+		return JAYLINK_OK;
+	}
+
+	log_err(ctx, "Receiving data from device timed out.");
+
+	return JAYLINK_ERR_TIMEOUT;
+}
+
+static bool adjust_buffer(struct jaylink_device_handle *devh, size_t size)
+{
+	struct jaylink_context *ctx;
+	size_t num_chunks;
+	uint8_t *buffer;
+
+	ctx = devh->dev->ctx;
+
+	/* Adjust buffer size to a multiple of CHUNK_SIZE bytes. */
+	num_chunks = size / CHUNK_SIZE;
+
+	if (size % CHUNK_SIZE > 0)
+		num_chunks++;
+
+	size = num_chunks * CHUNK_SIZE;
+	buffer = realloc(devh->buffer, size);
+
+	if (!buffer) {
+		log_err(ctx, "Failed to adjust buffer size to %zu bytes.",
+			size);
+		return false;
+	}
+
+	devh->buffer = buffer;
+	devh->buffer_size = size;
+
+	log_dbg(ctx, "Adjusted buffer size to %zu bytes.", size);
+
+	return true;
+}
+
+static int usb_send(struct jaylink_device_handle *devh, const uint8_t *buffer,
+		size_t length)
+{
+	int ret;
+	struct jaylink_context *ctx;
+	unsigned int tries;
+	int transferred;
+
+	ctx = devh->dev->ctx;
+	tries = NUM_TIMEOUTS;
+
+	while (tries > 0 && length > 0) {
+		/* Send data in chunks of CHUNK_SIZE bytes to the device. */
+		ret = libusb_bulk_transfer(devh->usb_devh, devh->endpoint_out,
+			(unsigned char *)buffer, MIN(CHUNK_SIZE, length),
+			&transferred, USB_TIMEOUT);
+
+		if (ret == LIBUSB_SUCCESS) {
+			tries = NUM_TIMEOUTS;
+		} else if (ret == LIBUSB_ERROR_TIMEOUT) {
+			log_warn(ctx, "Failed to send data to device: %s.",
+				libusb_error_name(ret));
+			tries--;
+		} else {
+			log_err(ctx, "Failed to send data to device: %s.",
+				libusb_error_name(ret));
+			return JAYLINK_ERR;
+		}
+
+		buffer += transferred;
+		length -= transferred;
+
+		log_dbgio(ctx, "Sent %i bytes to device.", transferred);
+	}
+
+	if (!length)
+		return JAYLINK_OK;
+
+	log_err(ctx, "Sending data to device timed out.");
+
+	return JAYLINK_ERR_TIMEOUT;
+}
+
+JAYLINK_PRIV int transport_usb_write(struct jaylink_device_handle *devh,
+		const uint8_t *buffer, size_t length)
+{
+	int ret;
+	struct jaylink_context *ctx;
+	size_t num_chunks;
+	size_t fill_bytes;
+	size_t tmp;
+
+	ctx = devh->dev->ctx;
+
+	if (length > devh->write_length) {
+		log_err(ctx, "Requested to write %zu bytes but only %zu bytes "
+			"are expected for the write operation.", length,
+			devh->write_length);
+		return JAYLINK_ERR_ARG;
+	}
+
+	/*
+	 * Store data in the buffer if the expected number of bytes for the
+	 * write operation is not reached.
+	 */
+	if (length < devh->write_length) {
+		if (devh->write_pos + length > devh->buffer_size) {
+			if (!adjust_buffer(devh, devh->write_pos + length))
+				return JAYLINK_ERR_MALLOC;
+		}
+
+		memcpy(devh->buffer + devh->write_pos, buffer, length);
+
+		devh->write_length -= length;
+		devh->write_pos += length;
+
+		log_dbgio(ctx, "Wrote %zu bytes into buffer.", length);
+		return JAYLINK_OK;
+	}
+
+	/*
+	 * Expected number of bytes for this write operation is reached and
+	 * therefore the write operation will be performed.
+	 */
+	devh->write_length = 0;
+
+	/* Send data directly to the device if the buffer is empty. */
+	if (!devh->write_pos)
+		return usb_send(devh, buffer, length);
+
+	/*
+	 * Calculate the number of bytes to fill up the buffer to reach a
+	 * multiple of CHUNK_SIZE bytes. This ensures that the data from the
+	 * buffer will be sent to the device in chunks of CHUNK_SIZE bytes.
+	 * Note that this is why the buffer size must be a multiple of
+	 * CHUNK_SIZE bytes.
+	 */
+	num_chunks = devh->write_pos / CHUNK_SIZE;
+
+	if (devh->write_pos % CHUNK_SIZE)
+		num_chunks++;
+
+	fill_bytes = (num_chunks * CHUNK_SIZE) - devh->write_pos;
+	tmp = MIN(length, fill_bytes);
+
+	if (tmp > 0) {
+		memcpy(devh->buffer + devh->write_pos, buffer, tmp);
+
+		length -= tmp;
+		buffer += tmp;
+
+		log_dbgio(ctx, "Buffer filled up with %zu bytes.", tmp);
+	}
+
+	/* Send buffered data to the device. */
+	ret = usb_send(devh, devh->buffer, devh->write_pos + tmp);
+	devh->write_pos = 0;
+
+	if (ret != JAYLINK_OK)
+		return ret;
+
+	if (!length)
+		return JAYLINK_OK;
+
+	/* Send remaining data to the device. */
+	return usb_send(devh, buffer, length);
+}
+
+JAYLINK_PRIV int transport_usb_read(struct jaylink_device_handle *devh,
+		uint8_t *buffer, size_t length)
+{
+	int ret;
+	struct jaylink_context *ctx;
+	size_t bytes_received;
+	size_t tmp;
+
+	ctx = devh->dev->ctx;
+
+	if (length > devh->read_length) {
+		log_err(ctx, "Requested to read %zu bytes but only %zu bytes "
+			"are expected for the read operation.", length,
+			devh->read_length);
+		return JAYLINK_ERR_ARG;
+	}
+
+	if (length <= devh->bytes_available) {
+		memcpy(buffer, devh->buffer + devh->read_pos, length);
+
+		devh->read_length -= length;
+		devh->bytes_available -= length;
+		devh->read_pos += length;
+
+		log_dbgio(ctx, "Read %zu bytes from buffer.", length);
+		return JAYLINK_OK;
+	}
+
+	if (devh->bytes_available) {
+		memcpy(buffer, devh->buffer + devh->read_pos,
+			devh->bytes_available);
+
+		buffer += devh->bytes_available;
+		length -= devh->bytes_available;
+		devh->read_length -= devh->bytes_available;
+
+		log_dbgio(ctx, "Read %zu bytes from buffer to flush it.",
+			devh->bytes_available);
+
+		devh->bytes_available = 0;
+		devh->read_pos = 0;
+	}
+
+	while (length > 0) {
+		/*
+		 * If less than CHUNK_SIZE bytes are requested from the device,
+		 * store the received data into the internal buffer instead of
+		 * directly into the user provided buffer. This is necessary to
+		 * prevent a possible buffer overflow because the number of
+		 * requested bytes from the device is always CHUNK_SIZE and
+		 * therefore up to CHUNK_SIZE bytes may be received.
+		 * Note that this is why the internal buffer size must be at
+		 * least CHUNK_SIZE bytes.
+		 */
+		if (length < CHUNK_SIZE) {
+			ret = usb_recv(devh, devh->buffer, &bytes_received);
+
+			if (ret != JAYLINK_OK)
+				return ret;
+
+			tmp = MIN(bytes_received, length);
+			memcpy(buffer, devh->buffer, tmp);
+
+			/*
+			 * Setup the buffer for the remaining data if more data
+			 * was received from the device than was requested.
+			 */
+			if (bytes_received > length) {
+				devh->bytes_available = bytes_received - tmp;
+				devh->read_pos = tmp;
+			}
+
+			buffer += tmp;
+			length -= tmp;
+			devh->read_length -= tmp;
+
+			log_dbgio(ctx, "Read %zu bytes from buffer.", tmp);
+		} else {
+			ret = usb_recv(devh, buffer, &bytes_received);
+
+			if (ret != JAYLINK_OK)
+				return ret;
+
+			buffer += bytes_received;
+			length -= bytes_received;
+			devh->read_length -= bytes_received;
+
+			log_dbgio(ctx, "Read %zu bytes from device.",
+				bytes_received);
+		}
+	}
+
+	return JAYLINK_OK;
+}
diff --git a/src/jtag/drivers/libjaylink/libjaylink/util.c b/src/jtag/drivers/libjaylink/libjaylink/util.c
new file mode 100644
index 0000000..4862d4e
--- /dev/null
+++ b/src/jtag/drivers/libjaylink/libjaylink/util.c
@@ -0,0 +1,56 @@
+/*
+ * This file is part of the libjaylink project.
+ *
+ * Copyright (C) 2014-2015 Marc Schink <jaylink-dev@marcschink.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdbool.h>
+
+#include "libjaylink.h"
+
+/**
+ * @file
+ *
+ * Utility functions.
+ */
+
+/**
+ * Check for a capability.
+ *
+ * The capabilities are expected to be stored in a bit array consisting of one
+ * or more bytes where each individual bit represents a capability. The first
+ * bit of this array is the least significant bit of the first byte and the
+ * following bits are sequentially numbered in order of increasing bit
+ * significance and byte index. A set bit indicates a supported capability.
+ *
+ * @param[in] caps Buffer with capabilities.
+ * @param[in] cap Bit position of the capability to check for.
+ *
+ * @retval true Capability is supported.
+ * @retval false Capability is not supported or invalid argument.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API bool jaylink_has_cap(const uint8_t *caps, uint32_t cap)
+{
+	if (!caps)
+		return false;
+
+	if (caps[cap / 8] & (1 << (cap % 8)))
+		return true;
+
+	return false;
+}
diff --git a/src/jtag/drivers/libjaylink/libjaylink/version.c b/src/jtag/drivers/libjaylink/libjaylink/version.c
new file mode 100644
index 0000000..88bc023
--- /dev/null
+++ b/src/jtag/drivers/libjaylink/libjaylink/version.c
@@ -0,0 +1,128 @@
+/*
+ * This file is part of the libjaylink project.
+ *
+ * Copyright (C) 2015 Marc Schink <jaylink-dev@marcschink.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "libjaylink.h"
+
+/**
+ * @file
+ *
+ * Package and library version functions.
+ */
+
+/**
+ * Get the major version number of the libjaylink package.
+ *
+ * @return The major version number of the libjaylink package.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_version_package_get_major(void)
+{
+	return JAYLINK_VERSION_PACKAGE_MAJOR;
+}
+
+/**
+ * Get the minor version number of the libjaylink package.
+ *
+ * @return The minor version number of the libjaylink package.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_version_package_get_minor(void)
+{
+	return JAYLINK_VERSION_PACKAGE_MINOR;
+}
+
+/**
+ * Get the micro version number of the libjaylink package.
+ *
+ * @return The micro version number of the libjaylink package.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_version_package_get_micro(void)
+{
+	return JAYLINK_VERSION_PACKAGE_MICRO;
+}
+
+/**
+ * Get the version number string of the libjaylink package.
+ *
+ * @return A string which contains the version number of the libjaylink
+ *         package. The string is null-terminated and must not be free'd by the
+ *         caller.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API const char *jaylink_version_package_get_string(void)
+{
+	return JAYLINK_VERSION_PACKAGE_STRING;
+}
+
+/**
+ * Get the <i>current</i> version number of the libjaylink libtool interface.
+ *
+ * @return The <i>current</i> version number of the libjaylink libtool
+ *         interface.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_version_library_get_current(void)
+{
+	return JAYLINK_VERSION_LIBRARY_CURRENT;
+}
+
+/**
+ * Get the <i>revision</i> version number of the libjaylink libtool interface.
+ *
+ * @return The <i>revision</i> version number of the libjaylink libtool
+ *         interface.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_version_library_get_revision(void)
+{
+	return JAYLINK_VERSION_LIBRARY_REVISION;
+}
+
+/**
+ * Get the <i>age</i> version number of the libjaylink libtool interface.
+ *
+ * @return The <i>age</i> version number of the libjaylink libtool interface.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API int jaylink_version_library_get_age(void)
+{
+	return JAYLINK_VERSION_LIBRARY_AGE;
+}
+
+/**
+ * Get the version number string of the libjaylink libtool interface.
+ *
+ * @return A string which contains the version number of the libjaylink libtool
+ *         interface. The string is null-terminated and must not be free'd by
+ *         the caller.
+ *
+ * @since 0.1.0
+ */
+JAYLINK_API const char *jaylink_version_library_get_string(void)
+{
+	return JAYLINK_VERSION_LIBRARY_STRING;
+}
diff --git a/src/jtag/drivers/libjaylink/libjaylink/version.h.in b/src/jtag/drivers/libjaylink/libjaylink/version.h.in
new file mode 100644
index 0000000..d6a7796
--- /dev/null
+++ b/src/jtag/drivers/libjaylink/libjaylink/version.h.in
@@ -0,0 +1,53 @@
+/*
+ * This file is part of the libjaylink project.
+ *
+ * Copyright (C) 2015 Marc Schink <jaylink-dev@marcschink.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef LIBJAYLINK_VERSION_H
+#define LIBJAYLINK_VERSION_H
+
+/**
+ * @file
+ *
+ * Package and library version macros.
+ */
+
+/** Major version number of the libjaylink package. */
+#define JAYLINK_VERSION_PACKAGE_MAJOR		@JAYLINK_VERSION_PACKAGE_MAJOR@
+
+/** Minor version number of the libjaylink package. */
+#define JAYLINK_VERSION_PACKAGE_MINOR		@JAYLINK_VERSION_PACKAGE_MINOR@
+
+/** Micro version number of the libjaylink package. */
+#define JAYLINK_VERSION_PACKAGE_MICRO		@JAYLINK_VERSION_PACKAGE_MICRO@
+
+/** Version number string of the libjaylink package. */
+#define JAYLINK_VERSION_PACKAGE_STRING		"@JAYLINK_VERSION_PACKAGE@"
+
+/** <i>Current</i> version number of the libjaylink libtool interface. */
+#define JAYLINK_VERSION_LIBRARY_CURRENT		@JAYLINK_VERSION_LIBRARY_CURRENT@
+
+/** <i>Revision</i> version number of the libjaylink libtool interface. */
+#define JAYLINK_VERSION_LIBRARY_REVISION	@JAYLINK_VERSION_LIBRARY_REVISION@
+
+/** <i>Age</i> version number of the libjaylink libtool interface. */
+#define JAYLINK_VERSION_LIBRARY_AGE		@JAYLINK_VERSION_LIBRARY_AGE@
+
+/** Version number string of the libjaylink libtool interface. */
+#define JAYLINK_VERSION_LIBRARY_STRING		"@JAYLINK_VERSION_LIBRARY@"
+
+#endif /* LIBJAYLINK_VERSION_H */
diff --git a/src/jtag/drivers/libjaylink/m4/jaylink.m4 b/src/jtag/drivers/libjaylink/m4/jaylink.m4
new file mode 100644
index 0000000..749568d
--- /dev/null
+++ b/src/jtag/drivers/libjaylink/m4/jaylink.m4
@@ -0,0 +1,91 @@
+##
+## This file is part of the libjaylink project.
+##
+## Copyright (C) 2016 Marc Schink <jaylink-dev@marcschink.de>
+##
+## This program is free software: you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation, either version 2 of the License, or
+## (at your option) any later version.
+##
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+## GNU General Public License for more details.
+##
+## You should have received a copy of the GNU General Public License
+## along with this program.  If not, see <http://www.gnu.org/licenses/>.
+##
+
+# serial 20161011
+
+## _JAYLINK_SET_PACKAGE_VERSION(prefix, version, major, minor, micro)
+##
+m4_define([_JAYLINK_SET_PACKAGE_VERSION], [
+	m4_assert([$# == 5])
+
+	# Get the short Git revision hash of the current commit.
+	git_version=`git --git-dir="$srcdir/.git" rev-parse \
+		--short HEAD 2> /dev/null`
+
+	# Try to get the release tag for the package version from the current
+	# commit.
+	tag=`git --git-dir="$srcdir/.git" describe --match "$2" \
+		--exact-match 2> /dev/null`
+
+	version=$2
+
+	# If Git is available, append the short Git revision hash of the
+	# current commit to the version string if there is no release tag for
+	# the package version on it.
+	AS_IF([test -n "$git_version" && test -z "$tag"],
+		[version="$version-git-$git_version"])
+
+	AC_SUBST([$1_MAJOR], [$3])
+	AC_SUBST([$1_MINOR], [$4])
+	AC_SUBST([$1_MICRO], [$5])
+	AC_SUBST([$1], [$version])
+])
+
+## JAYLINK_SET_PACKAGE_VERSION(prefix, version)
+##
+## Parse the package version string of the format <major>.<minor>.<micro> and
+## set the variables <prefix>_{MAJOR,MINOR,MICRO} to their corresponding
+## values.
+##
+## Set the variable <prefix> to the package version string. If Git is
+## available, append the short Git revision hash of the current commit to the
+## version string if there is no release tag for the package version on it.
+##
+AC_DEFUN([JAYLINK_SET_PACKAGE_VERSION], [
+	m4_assert([$# == 2])
+
+	_JAYLINK_SET_PACKAGE_VERSION([$1], [$2],
+		m4_unquote(m4_split(m4_expand([$2]), [\.])))
+])
+
+## _JAYLINK_SET_LIBRARY_VERSION(prefix, version, current, revision, age)
+##
+m4_define([_JAYLINK_SET_LIBRARY_VERSION], [
+	m4_assert([$# == 5])
+
+	AC_SUBST([$1_CURRENT], [$3])
+	AC_SUBST([$1_REVISION], [$4])
+	AC_SUBST([$1_AGE], [$5])
+	AC_SUBST([$1], [$2])
+])
+
+## JAYLINK_SET_LIBRARY_VERSION(prefix, version)
+##
+## Parse the library version string of the format <current>:<revision>:<age>
+## and set the variables <prefix>_{CURRENT,REVISION,AGE} to their corresponding
+## values.
+##
+## Set the variable <prefix> to the library version string.
+##
+AC_DEFUN([JAYLINK_SET_LIBRARY_VERSION], [
+	m4_assert([$# == 2])
+
+	_JAYLINK_SET_LIBRARY_VERSION([$1], [$2],
+		m4_unquote(m4_split([$2], [:])))
+])
diff --git a/tools/git2cl b/tools/git2cl
deleted file mode 160000
-Subproject 8373c9f74993e218a08819cbcdbab3f3564bbeb
diff --git a/tools/git2cl/COPYING b/tools/git2cl/COPYING
new file mode 100644
index 0000000..d511905
--- /dev/null
+++ b/tools/git2cl/COPYING
@@ -0,0 +1,339 @@
+		    GNU GENERAL PUBLIC LICENSE
+		       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+			    Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users.  This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it.  (Some other Free Software Foundation software is covered by
+the GNU Lesser General Public License instead.)  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+this service if you wish), that you receive source code or can get it
+if you want it, that you can change the software or use pieces of it
+in new free programs; and that you know you can do these things.
+
+  To protect your rights, we need to make restrictions that forbid
+anyone to deny you these rights or to ask you to surrender the rights.
+These restrictions translate to certain responsibilities for you if you
+distribute copies of the software, or if you modify it.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must give the recipients all the rights that
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+source code.  And you must show them these terms so they know their
+rights.
+
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+(2) offer you this license which gives you legal permission to copy,
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+
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+that everyone understands that there is no warranty for this free
+software.  If the software is modified by someone else and passed on, we
+want its recipients to know that what they have is not the original, so
+that any problems introduced by others will not reflect on the original
+authors' reputations.
+
+  Finally, any free program is threatened constantly by software
+patents.  We wish to avoid the danger that redistributors of a free
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+patent must be licensed for everyone's free use or not licensed at all.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+		    GNU GENERAL PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
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+Activities other than copying, distribution and modification are not
+covered by this License; they are outside its scope.  The act of
+running the Program is not restricted, and the output from the Program
+is covered only if its contents constitute a work based on the
+Program (independent of having been made by running the Program).
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+and give any other recipients of the Program a copy of this License
+along with the Program.
+
+You may charge a fee for the physical act of transferring a copy, and
+you may at your option offer warranty protection in exchange for a fee.
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+These requirements apply to the modified work as a whole.  If
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+TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
+YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
+PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
+
+		     END OF TERMS AND CONDITIONS
+
+	    How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+    Gnomovision version 69, Copyright (C) year name of author
+    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Ty Coon>, 1 April 1989
+  Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.
diff --git a/tools/git2cl/README b/tools/git2cl/README
new file mode 100644
index 0000000..4084080
--- /dev/null
+++ b/tools/git2cl/README
@@ -0,0 +1,45 @@
+git2cl
+======
+
+This is a quick'n'dirty tool to convert git logs to GNU ChangeLog
+format.
+
+The tool invokes 'git log' internally unless you pipe a log to it.
+Thus, typically you would use it as follows:
+
+...........................................................................
+jas@mocca:~/src/libtasn1$ git2cl > ChangeLog
+jas@mocca:~/src/libtasn1$
+...........................................................................
+
+If you don't want git2cl to invoke git log internally, you can use it
+as a pipe.  It needs a git log generated with --pretty --numstat and
+--summary.  You can use it as follows:
+
+...........................................................................
+jas@mocca:~/src/libtasn1$ git log --pretty --numstat --summary | ~/src/git2cl/git2cl > ChangeLog
+jas@mocca:~/src/libtasn1$
+...........................................................................
+
+The output format is specified by:
+
+link:http://www.gnu.org/prep/standards/html_node/Change-Logs.html[]
+
+My inspiration for writing this tool was the
+link:http://www.red-bean.com/cvs2cl/[cvs2cl] tool, which I have been
+using in several projects.  Replacing it was necessary to seriously
+consider switching from CVS to GIT for my projects.
+
+The canonical home page for git2cl is:
+link:http://josefsson.org/git2cl/[] and its repository can be found at
+link:http://repo.or.cz/w/git2cl.git[].
+
+Credits
+-------
+
+Luis Mondesi contributed several improvements.
+
+Support
+-------
+
+Try talking to mailto:simon@josefsson.org[Simon Josefsson].
diff --git a/tools/git2cl/README.html b/tools/git2cl/README.html
new file mode 100644
index 0000000..f82da5d
--- /dev/null
+++ b/tools/git2cl/README.html
@@ -0,0 +1,392 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"

+    "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">

+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">

+<head>

+<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />

+<meta name="generator" content="AsciiDoc 8.2.7" />

+<style type="text/css">

+/* Debug borders */

+p, li, dt, dd, div, pre, h1, h2, h3, h4, h5, h6 {

+/*

+  border: 1px solid red;

+*/

+}

+

+body {

+  margin: 1em 5% 1em 5%;

+}

+

+a {

+  color: blue;

+  text-decoration: underline;

+}

+a:visited {

+  color: fuchsia;

+}

+

+em {

+  font-style: italic;

+  color: navy;

+}

+

+strong {

+  font-weight: bold;

+  color: #083194;

+}

+

+tt {

+  color: navy;

+}

+

+h1, h2, h3, h4, h5, h6 {

+  color: #527bbd;

+  font-family: sans-serif;

+  margin-top: 1.2em;

+  margin-bottom: 0.5em;

+  line-height: 1.3;

+}

+

+h1, h2, h3 {

+  border-bottom: 2px solid silver;

+}

+h2 {

+  padding-top: 0.5em;

+}

+h3 {

+  float: left;

+}

+h3 + * {

+  clear: left;

+}

+

+div.sectionbody {

+  font-family: serif;

+  margin-left: 0;

+}

+

+hr {

+  border: 1px solid silver;

+}

+

+p {

+  margin-top: 0.5em;

+  margin-bottom: 0.5em;

+}

+

+ul, ol, li > p {

+  margin-top: 0;

+}

+

+pre {

+  padding: 0;

+  margin: 0;

+}

+

+span#author {

+  color: #527bbd;

+  font-family: sans-serif;

+  font-weight: bold;

+  font-size: 1.1em;

+}

+span#email {

+}

+span#revision {

+  font-family: sans-serif;

+}

+

+div#footer {

+  font-family: sans-serif;

+  font-size: small;

+  border-top: 2px solid silver;

+  padding-top: 0.5em;

+  margin-top: 4.0em;

+}

+div#footer-text {

+  float: left;

+  padding-bottom: 0.5em;

+}

+div#footer-badges {

+  float: right;

+  padding-bottom: 0.5em;

+}

+

+div#preamble,

+div.tableblock, div.imageblock, div.exampleblock, div.verseblock,

+div.quoteblock, div.literalblock, div.listingblock, div.sidebarblock,

+div.admonitionblock {

+  margin-right: 10%;

+  margin-top: 1.5em;

+  margin-bottom: 1.5em;

+}

+div.admonitionblock {

+  margin-top: 2.5em;

+  margin-bottom: 2.5em;

+}

+

+div.content { /* Block element content. */

+  padding: 0;

+}

+

+/* Block element titles. */

+div.title, caption.title {

+  color: #527bbd;

+  font-family: sans-serif;

+  font-weight: bold;

+  text-align: left;

+  margin-top: 1.0em;

+  margin-bottom: 0.5em;

+}

+div.title + * {

+  margin-top: 0;

+}

+

+td div.title:first-child {

+  margin-top: 0.0em;

+}

+div.content div.title:first-child {

+  margin-top: 0.0em;

+}

+div.content + div.title {

+  margin-top: 0.0em;

+}

+

+div.sidebarblock > div.content {

+  background: #ffffee;

+  border: 1px solid silver;

+  padding: 0.5em;

+}

+

+div.listingblock {

+  margin-right: 0%;

+}

+div.listingblock > div.content {

+  border: 1px solid silver;

+  background: #f4f4f4;

+  padding: 0.5em;

+}

+

+div.quoteblock {

+  padding-left: 2.0em;

+}

+div.quoteblock > div.attribution {

+  padding-top: 0.5em;

+  text-align: right;

+}

+

+div.verseblock {

+  padding-left: 2.0em;

+}

+div.verseblock > div.content {

+  white-space: pre;

+}

+div.verseblock > div.attribution {

+  padding-top: 0.75em;

+  text-align: left;

+}

+/* DEPRECATED: Pre version 8.2.7 verse style literal block. */

+div.verseblock + div.attribution {

+  text-align: left;

+}

+

+div.admonitionblock .icon {

+  vertical-align: top;

+  font-size: 1.1em;

+  font-weight: bold;

+  text-decoration: underline;

+  color: #527bbd;

+  padding-right: 0.5em;

+}

+div.admonitionblock td.content {

+  padding-left: 0.5em;

+  border-left: 2px solid silver;

+}

+

+div.exampleblock > div.content {

+  border-left: 2px solid silver;

+  padding: 0.5em;

+}

+

+div.imageblock div.content { padding-left: 0; }

+div.imageblock img { border: 1px solid silver; }

+span.image img { border-style: none; }

+

+dl {

+  margin-top: 0.8em;

+  margin-bottom: 0.8em;

+}

+dt {

+  margin-top: 0.5em;

+  margin-bottom: 0;

+  font-style: normal;

+}

+dd > *:first-child {

+  margin-top: 0.1em;

+}

+

+ul, ol {

+    list-style-position: outside;

+}

+div.olist > ol {

+  list-style-type: decimal;

+}

+div.olist2 > ol {

+  list-style-type: lower-alpha;

+}

+

+div.tableblock > table {

+  border: 3px solid #527bbd;

+}

+thead {

+  font-family: sans-serif;

+  font-weight: bold;

+}

+tfoot {

+  font-weight: bold;

+}

+

+div.hlist {

+  margin-top: 0.8em;

+  margin-bottom: 0.8em;

+}

+div.hlist td {

+  padding-bottom: 15px;

+}

+td.hlist1 {

+  vertical-align: top;

+  font-style: normal;

+  padding-right: 0.8em;

+}

+td.hlist2 {

+  vertical-align: top;

+}

+

+@media print {

+  div#footer-badges { display: none; }

+}

+

+div#toctitle {

+  color: #527bbd;

+  font-family: sans-serif;

+  font-size: 1.1em;

+  font-weight: bold;

+  margin-top: 1.0em;

+  margin-bottom: 0.1em;

+}

+

+div.toclevel1, div.toclevel2, div.toclevel3, div.toclevel4 {

+  margin-top: 0;

+  margin-bottom: 0;

+}

+div.toclevel2 {

+  margin-left: 2em;

+  font-size: 0.9em;

+}

+div.toclevel3 {

+  margin-left: 4em;

+  font-size: 0.9em;

+}

+div.toclevel4 {

+  margin-left: 6em;

+  font-size: 0.9em;

+}

+/* Workarounds for IE6's broken and incomplete CSS2. */

+

+div.sidebar-content {

+  background: #ffffee;

+  border: 1px solid silver;

+  padding: 0.5em;

+}

+div.sidebar-title, div.image-title {

+  color: #527bbd;

+  font-family: sans-serif;

+  font-weight: bold;

+  margin-top: 0.0em;

+  margin-bottom: 0.5em;

+}

+

+div.listingblock div.content {

+  border: 1px solid silver;

+  background: #f4f4f4;

+  padding: 0.5em;

+}

+

+div.quoteblock-attribution {

+  padding-top: 0.5em;

+  text-align: right;

+}

+

+div.verseblock-content {

+  white-space: pre;

+}

+div.verseblock-attribution {

+  padding-top: 0.75em;

+  text-align: left;

+}

+

+div.exampleblock-content {

+  border-left: 2px solid silver;

+  padding-left: 0.5em;

+}

+

+/* IE6 sets dynamically generated links as visited. */

+div#toc a:visited { color: blue; }

+

+/* Because IE6 child selector is broken. */

+div.olist2 ol {

+  list-style-type: lower-alpha;

+}

+div.olist2 div.olist ol {

+  list-style-type: decimal;

+}

+</style>

+<title>git2cl</title>

+</head>

+<body>

+<div id="header">

+<h1>git2cl</h1>

+</div>

+<div id="preamble">

+<div class="sectionbody">

+<div class="para"><p>This is a quick'n'dirty tool to convert git logs to GNU ChangeLog

+format.</p></div>

+<div class="para"><p>The tool invokes <em>git log</em> internally unless you pipe a log to it.

+Thus, typically you would use it as follows:</p></div>

+<div class="literalblock">

+<div class="content">

+<pre><tt>jas@mocca:~/src/libtasn1$ git2cl &gt; ChangeLog

+jas@mocca:~/src/libtasn1$</tt></pre>

+</div></div>

+<div class="para"><p>If you don't want git2cl to invoke git log internally, you can use it

+as a pipe.  It needs a git log generated with &#8212;pretty &#8212;numstat and

+&#8212;summary.  You can use it as follows:</p></div>

+<div class="literalblock">

+<div class="content">

+<pre><tt>jas@mocca:~/src/libtasn1$ git log --pretty --numstat --summary | ~/src/git2cl/git2cl &gt; ChangeLog

+jas@mocca:~/src/libtasn1$</tt></pre>

+</div></div>

+<div class="para"><p>The output format is specified by:</p></div>

+<div class="para"><p><a href="http://www.gnu.org/prep/standards/html_node/Change-Logs.html">http://www.gnu.org/prep/standards/html_node/Change-Logs.html</a></p></div>

+<div class="para"><p>My inspiration for writing this tool was the

+<a href="http://www.red-bean.com/cvs2cl/">cvs2cl</a> tool, which I have been

+using in several projects.  Replacing it was necessary to seriously

+consider switching from CVS to GIT for my projects.</p></div>

+<div class="para"><p>The canonical home page for git2cl is:

+<a href="http://josefsson.org/git2cl/">http://josefsson.org/git2cl/</a> and its repository can be found at

+<a href="http://repo.or.cz/w/git2cl.git">http://repo.or.cz/w/git2cl.git</a>.</p></div>

+</div>

+</div>

+<h2 id="_credits">Credits</h2>

+<div class="sectionbody">

+<div class="para"><p>Luis Mondesi contributed several improvements.</p></div>

+</div>

+<h2 id="_support">Support</h2>

+<div class="sectionbody">

+<div class="para"><p>Try talking to <a href="mailto:simon@josefsson.org">Simon Josefsson</a>.</p></div>

+</div>

+<div id="footer">

+<div id="footer-text">

+Last updated 2008-08-27 12:42:17 CEST

+</div>

+</div>

+</body>

+</html>

diff --git a/tools/git2cl/git2cl b/tools/git2cl/git2cl
new file mode 100755
index 0000000..1c2ab3f
--- /dev/null
+++ b/tools/git2cl/git2cl
@@ -0,0 +1,372 @@
+#!/usr/bin/perl
+
+# Copyright (C) 2007, 2008 Simon Josefsson <simon@josefsson.org>
+# Copyright (C) 2007 Luis Mondesi <lemsx1@gmail.com>
+# * calls git directly. To use it just: 
+#   cd ~/Project/my_git_repo; git2cl > ChangeLog
+# * implements strptime()
+# * fixes bugs in $comment parsing
+#   - copy input before we remove leading spaces
+#   - skip "merge branch" statements as they don't
+#     have information about files (i.e. we never
+#     go into $state 2)
+#   - behaves like a pipe/filter if input is given from the CLI
+#     else it calls git log by itself
+#
+# The functions mywrap, last_line_len, wrap_log_entry are derived from
+# the cvs2cl tool, see <http://www.red-bean.com/cvs2cl/>:
+# Copyright (C) 2001,2002,2003,2004 Martyn J. Pearce <fluffy@cpan.org>
+# Copyright (C) 1999 Karl Fogel <kfogel@red-bean.com>
+#
+# git2cl is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# git2cl is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with git2cl; see the file COPYING.  If not, write to the Free
+# Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+# 02111-1307, USA.
+
+use strict;
+use POSIX qw(strftime);
+use Text::Wrap qw(wrap);
+use FileHandle;
+
+use constant EMPTY_LOG_MESSAGE => '*** empty log message ***';
+
+# this is a helper hash for stptime.
+# Assumes you are calling 'git log ...' with LC_ALL=C
+my %month = (
+    'Jan'=>0,
+    'Feb'=>1,
+    'Mar'=>2,
+    'Apr'=>3,
+    'May'=>4,
+    'Jun'=>5,
+    'Jul'=>6,
+    'Aug'=>7,
+    'Sep'=>8,
+    'Oct'=>9,
+    'Nov'=>10,
+    'Dec'=>11,
+);
+
+my $fh = new FileHandle;
+
+sub key_ready
+{
+    my ($rin, $nfd);
+    vec($rin, fileno(STDIN), 1) = 1;
+    return $nfd = select($rin, undef, undef, 0);
+}
+
+sub strptime {
+    my $str = shift;
+    return undef if not defined $str;
+
+    # we are parsing this format
+    # Fri Oct 26 00:42:56 2007 -0400
+    # to these fields
+    # sec, min, hour, mday, mon, year, wday = -1, yday = -1, isdst = -1
+    # Luis Mondesi <lemsx1@gmail.com>
+    my @date;
+    if ($str =~ /([[:alpha:]]{3})\s+([[:alpha:]]{3})\s+([[:digit:]]{1,2})\s+([[:digit:]]{1,2}):([[:digit:]]{1,2}):([[:digit:]]{1,2})\s+([[:digit:]]{4})/){
+        push(@date,$6,$5,$4,$3,$month{$2},($7 - 1900),-1,-1,-1);
+    } else {
+        die ("Cannot parse date '$str'\n'");
+    }
+    return @date;
+}
+
+sub mywrap {
+    my ($indent1, $indent2, @text) = @_;
+    # If incoming text looks preformatted, don't get clever
+    my $text = Text::Wrap::wrap($indent1, $indent2, @text);
+    if ( grep /^\s+/m, @text ) {
+	return $text;
+    }
+    my @lines = split /\n/, $text;
+    $indent2 =~ s!^((?: {8})+)!"\t" x (length($1)/8)!e;
+    $lines[0] =~ s/^$indent1\s+/$indent1/;
+    s/^$indent2\s+/$indent2/
+	for @lines[1..$#lines];
+    my $newtext = join "\n", @lines;
+    $newtext .= "\n"
+	if substr($text, -1) eq "\n";
+    return $newtext;
+}
+
+sub last_line_len {
+    my $files_list = shift;
+    my @lines = split (/\n/, $files_list);
+    my $last_line = pop (@lines);
+    return length ($last_line);
+}
+
+# A custom wrap function, sensitive to some common constructs used in
+# log entries.
+sub wrap_log_entry {
+    my $text = shift;                  # The text to wrap.
+    my $left_pad_str = shift;          # String to pad with on the left.
+
+    # These do NOT take left_pad_str into account:
+    my $length_remaining = shift;      # Amount left on current line.
+    my $max_line_length  = shift;      # Amount left for a blank line.
+
+    my $wrapped_text = '';             # The accumulating wrapped entry.
+    my $user_indent = '';              # Inherited user_indent from prev line.
+
+    my $first_time = 1;                # First iteration of the loop?
+    my $suppress_line_start_match = 0; # Set to disable line start checks.
+
+    my @lines = split (/\n/, $text);
+    while (@lines)   # Don't use `foreach' here, it won't work.
+    {
+	my $this_line = shift (@lines);
+	chomp $this_line;
+
+	if ($this_line =~ /^(\s+)/) {
+	    $user_indent = $1;
+	}
+	else {
+	    $user_indent = '';
+	}
+
+	# If it matches any of the line-start regexps, print a newline now...
+	if ($suppress_line_start_match)
+	{
+	    $suppress_line_start_match = 0;
+	}
+	elsif (($this_line =~ /^(\s*)\*\s+[a-zA-Z0-9]/)
+	       || ($this_line =~ /^(\s*)\* [a-zA-Z0-9_\.\/\+-]+/)
+	       || ($this_line =~ /^(\s*)\([a-zA-Z0-9_\.\/\+-]+(\)|,\s*)/)
+	       || ($this_line =~ /^(\s+)(\S+)/)
+	       || ($this_line =~ /^(\s*)- +/)
+	       || ($this_line =~ /^()\s*$/)
+	       || ($this_line =~ /^(\s*)\*\) +/)
+	       || ($this_line =~ /^(\s*)[a-zA-Z0-9](\)|\.|\:) +/))
+	{
+	    $length_remaining = $max_line_length - (length ($user_indent));
+	}
+
+	# Now that any user_indent has been preserved, strip off leading
+	# whitespace, so up-folding has no ugly side-effects.
+	$this_line =~ s/^\s*//;
+
+	# Accumulate the line, and adjust parameters for next line.
+	my $this_len = length ($this_line);
+	if ($this_len == 0)
+	{
+	    # Blank lines should cancel any user_indent level.
+	    $user_indent = '';
+	    $length_remaining = $max_line_length;
+	}
+	elsif ($this_len >= $length_remaining) # Line too long, try breaking it.
+	{
+	    # Walk backwards from the end.  At first acceptable spot, break
+	    # a new line.
+	    my $idx = $length_remaining - 1;
+	    if ($idx < 0) { $idx = 0 };
+	    while ($idx > 0)
+	    {
+		if (substr ($this_line, $idx, 1) =~ /\s/)
+		{
+		    my $line_now = substr ($this_line, 0, $idx);
+		    my $next_line = substr ($this_line, $idx);
+		    $this_line = $line_now;
+
+		    # Clean whitespace off the end.
+		    chomp $this_line;
+
+		    # The current line is ready to be printed.
+		    $this_line .= "\n${left_pad_str}";
+
+		    # Make sure the next line is allowed full room.
+		    $length_remaining = $max_line_length - (length ($user_indent));
+
+		    # Strip next_line, but then preserve any user_indent.
+		    $next_line =~ s/^\s*//;
+
+		    # Sneak a peek at the user_indent of the upcoming line, so
+		    # $next_line (which will now precede it) can inherit that
+		    # indent level.  Otherwise, use whatever user_indent level
+		    # we currently have, which might be none.
+		    my $next_next_line = shift (@lines);
+		    if ((defined ($next_next_line)) && ($next_next_line =~ /^(\s+)/)) {
+			$next_line = $1 . $next_line if (defined ($1));
+			# $length_remaining = $max_line_length - (length ($1));
+			$next_next_line =~ s/^\s*//;
+		    }
+		    else {
+			$next_line = $user_indent . $next_line;
+		    }
+		    if (defined ($next_next_line)) {
+			unshift (@lines, $next_next_line);
+		    }
+		    unshift (@lines, $next_line);
+
+		    # Our new next line might, coincidentally, begin with one of
+		    # the line-start regexps, so we temporarily turn off
+		    # sensitivity to that until we're past the line.
+		    $suppress_line_start_match = 1;
+
+		    last;
+		}
+		else
+		{
+		    $idx--;
+		}
+	    }
+
+	    if ($idx == 0)
+	    {
+		# We bottomed out because the line is longer than the
+		# available space.  But that could be because the space is
+		# small, or because the line is longer than even the maximum
+		# possible space.  Handle both cases below.
+
+		if ($length_remaining == ($max_line_length - (length ($user_indent))))
+		{
+		    # The line is simply too long -- there is no hope of ever
+		    # breaking it nicely, so just insert it verbatim, with
+		    # appropriate padding.
+		    $this_line = "\n${left_pad_str}${this_line}";
+		}
+		else
+		{
+		    # Can't break it here, but may be able to on the next round...
+		    unshift (@lines, $this_line);
+		    $length_remaining = $max_line_length - (length ($user_indent));
+		    $this_line = "\n${left_pad_str}";
+		}
+	    }
+	}
+	else  # $this_len < $length_remaining, so tack on what we can.
+	{
+	    # Leave a note for the next iteration.
+	    $length_remaining = $length_remaining - $this_len;
+
+	    if ($this_line =~ /\.$/)
+	    {
+		$this_line .= "  ";
+		$length_remaining -= 2;
+	    }
+	    else  # not a sentence end
+	    {
+		$this_line .= " ";
+		$length_remaining -= 1;
+	    }
+	}
+
+	# Unconditionally indicate that loop has run at least once.
+	$first_time = 0;
+
+	$wrapped_text .= "${user_indent}${this_line}";
+    }
+
+    # One last bit of padding.
+    $wrapped_text .= "\n";
+
+    return $wrapped_text;
+}
+
+# main
+
+my @date;
+my $author;
+my @files;
+my $comment;
+
+my $state; # 0-header 1-comment 2-files
+my $done = 0;
+
+$state = 0;
+
+# if reading from STDIN, we assume that we are
+# getting git log as input
+if (key_ready())
+{
+
+    #my $dummyfh; # don't care about writing
+    #($fh,$dummyfh) = FileHandle::pipe;
+    $fh->fdopen(*STDIN, 'r');
+}
+else
+{
+    $fh->open("LC_ALL=C git log --pretty --numstat --summary|")
+	or die("Cannot execute git log...$!\n");
+}
+
+while (my $_l = <$fh>) {
+    #print STDERR "debug ($state, " . (@date ? (strftime "%Y-%m-%d", @date) : "") . "): `$_'\n";
+    if ($state == 0) {
+	if ($_l =~ m,^Author: (.*),) {
+	    $author = $1;
+	}
+	if ($_l =~ m,^Date: (.*),) {
+	    @date = strptime($1);
+	}
+	$state = 1 if ($_l =~ m,^$, and $author and (@date+0>0));
+    } elsif ($state == 1) {
+        # * modifying our input text is a bad choice
+        #   let's make a copy of it first, then we remove spaces 
+        # * if we meet a "merge branch" statement, we need to start
+        #   over and find a real entry
+        # Luis Mondesi <lemsx1@gmail.com>
+        my $_s = $_l;
+	$_s =~ s/^    //g;
+        if ($_s =~ m/^Merge branch/)
+        {
+            $state=0;
+            next;
+        }
+	$comment = $comment . $_s;
+	$state = 2 if ($_l =~ m,^$,);
+    } elsif ($state == 2) {
+	if ($_l =~ m,^([0-9]+)\t([0-9]+)\t(.*)$,) {
+	    push @files, $3;
+	}
+	$done = 1 if ($_l =~ m,^$,);
+    }
+
+    if ($done) {
+	print (strftime "%Y-%m-%d  $author\n\n", @date);
+
+	my $files = join (", ", @files);
+	$files = mywrap ("\t", "\t", "* $files"), ": ";
+
+	if (index($comment, EMPTY_LOG_MESSAGE) > -1 ) {
+	    $comment = "[no log message]\n";
+	}
+
+	my $files_last_line_len = 0;
+	$files_last_line_len = last_line_len($files) + 1;
+	my $msg = wrap_log_entry($comment, "\t", 69-$files_last_line_len, 69);
+
+	$msg =~ s/[ \t]+\n/\n/g;
+
+	print "$files: $msg\n";
+
+	@date = ();
+	$author = "";
+	@files = ();
+	$comment = "";
+
+	$state = 0;
+	$done = 0;
+    }
+}
+
+if (@date + 0)
+{
+    print (strftime "%Y-%m-%d  $author\n\n", @date);
+    my $msg = wrap_log_entry($comment, "\t", 69, 69);
+    $msg =~ s/[ \t]+\n/\n/g;
+    print "\t* $msg\n";
+}